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Thehistory of the United States from 1991 to 2016 began following thedissolution of the Soviet Union. The dissolution signaled the end of theCold War and left the U.S. unchallenged as the world's sole superpower. The U.S. took a leading role in military involvement in the Middle East. The U.S. expelled anIraqi invasion force fromKuwait, a Middle Eastern ally of the U.S., in thePersian Gulf War. On the domestic front, theDemocrats won a return to the White House with the election ofBill Clinton in1992. In the1994 midterm election, theRepublicans won control of Congress for the first time in 40 years. Strife between Clinton and the Republicans in Congress initially resulted in afederal government shutdown following abudget crisis, but later they worked together to passwelfare reform, theChildren's Health Insurance Program, and a balanced budget. Charges from theClinton–Lewinsky scandal led to the 1998impeachment of Bill Clinton by the House of Representatives but he was later acquitted by the Senate. The U.S. economy boomed in the enthusiasm for high-technology industries in the 1990s until theNasdaq crashed as thedot-com bubble burst and theearly 2000s recession marked the end of the sustained economic growth.
In2000, RepublicanGeorge W. Bush was elected president in one of the closest elections in U.S. history. Early in his term, his administration approvededucation reform and a largeacross-the-board tax cut aimed at stimulating the economy. Following theSeptember 11 attacks in 2001, the U.S. embarked on the globalwar on terrorism, starting with the 2001war in Afghanistan to depose theTaliban and eliminateAl-Qaeda. In 2003, the U.S.invaded Iraq, deposingSaddam Hussein and setting up theRepublic of Iraq resulting in aprolonged conflict that would continue over the course of the decade. TheHomeland Security Department was formed and the controversialPatriot Act was passed to bolster domestic efforts against terrorism. In 2006, criticism over the handling of the disastrousHurricane Katrina (which struck theGulf Coast region in 2005), political scandals, and the growing unpopularity of the Iraq War helped theDemocratsgain control of Congress.Saddam Hussein was latertried, charged forwar crimes andcrimes against humanity, andexecuted by hanging. In 2007, President Bush ordered atroop surge in Iraq, which ultimately led to reduced casualties.
The collapse of thehousing bubble in 2007 led to theGreat Recession. The resulting economic downturn and general discontent ledBarack Obama to win thepresidential election in 2008, becoming the country's firstAfrican-American president. Obama's domestic agenda notably includedeconomic stimulus packages and theAffordable Care Act. The year 2011 saw the formal end to theIraq War, thekilling ofAl-Qaeda leaderOsama bin Laden, and the outbreak of theSyrian Civil War. The war on terror continued with an increase in theuse of drone warfare and a shift in attention toward theIslamic State in the 2010s. In 2016, China surpassed the United States to become theworld's largest economy when measured bypurchasing power parity (PPP).
During Bill Clinton's presidency American political discourse focused mostly on domestic issues. While the early 1990s saw the US economy mired in recession, a recovery began starting in 1994 and began accelerating thanks to a boom created by technology. The Internet and related technologies made their first broad penetrations into the economy, prompting aWall Street technology-drivenbubble, whichFederal Reserve chairmanAlan Greenspan described in 1996 as "irrational exuberance". By 1998, the economy was booming and unemployment below 5%.[1]
Following thedissolution of the Soviet Union in 1991, the United States was the world's dominant military power and Japan, sometimes seen as the largest economic rival to the U.S., was caught in a period of stagnation.[2] China was emerging as the U.S.'s foremost trading competitor in more and more areas, with China's exports growing exceedingly during the 1990s and well into the 2000s.[3] Localized conflicts such as those in Haiti and theBalkans prompted PresidentBill Clinton to send in U.S. troops aspeacekeepers, reviving theCold-War-era controversy about whether policing the rest of the world was a proper U.S. role.Islamic radicals overseas loudly threatened assaults against the U.S. for its ongoing military presence in the Middle East, and even staged thefirst World Trade Center attack, a truck bombing in New York's twin towers, in 1993, as well as a number of deadly attacks on U.S. interests abroad.
Immigration, mainly from Latin America and Asia, swelled during the 1990s, laying the groundwork for great changes in the demographic makeup of the U.S. population in coming decades, such asHispanics replacing African-Americans as the largest minority. Despite tougher border scrutiny after theSeptember 11 attacks, nearly 8 millionimmigrants came to the United States from 2000 to 2005—more than in any other five-year period in the nation's history[4]—with almost half entering illegally.[5]
The 1990s saw the US becoming more involved in free trade with the NAFTA agreement involving the US, Canada and Mexico being signed in 1992 before coming into effect in 1994[6] along with joining the World Trade Organization in 1995.[7] During this period, inflation remained low despite recessions happening making it different from previous times in US history when inflation would increase when the economy grew.[8] Deflation was only reported in one year which was 2009 with the inflation rate being −0.4%.[9]

Early 2000 to 2001 saw the dramatic bursting of thedot-com bubble. Excitement over the prospects of Internet stocks had led to huge increases in the major indexes. However, dozens of start-up Internet companies failed as many of the lofty promises heralded by the new world of the Web failed to materialize. On March 10, 2000, theNasdaq peaked at 5,048.62,[10] more than double its value just a year before. The downturn began on March 13, 2000, triggering a chain reaction of selling that fed on itself as investors, funds, and institutions liquidated positions. In just six days, the NASDAQ had lost nearly nine percent, falling to 4,580 on March 15. By 2001, the bubble was deflating at full speed. A majority of the dot-coms ceased trading after burning through theirventure capital, many having never made a profit.[11]
In 2002, the GDP growth rate rose to 2.8%. A major short-term problem in the first half of 2002 was a sharp decline in thestock market, fueled in part by the exposure ofdubious accounting practices in some major corporations. Another was unemployment, which experienced the longest period of monthly increase since theGreat Depression. The United States began to recover from thepost-9/11 recession in 2003, but the robustness of the market (7% GDP growth), combined with the unemployment rate (above 6%), led some economists and politicians to refer to the situation as a "jobless recovery". Despite this, economic growth continued apace through early 2008 and unemployment dropped below 5%.[12]
TheGreat Recession began in December 2007 and was both afinancial crisis and a deeprecession. While the recession officially lasted from December 2007 to June 2009, it took many years for the economy to recover to pre-crisis levels ofemployment andoutput. This slow recovery was due in part to households and financial institutions paying off debts accumulated in the years preceding the crisis[13] along with restrained government spending following initial stimulus efforts.[14] It followed the bursting of thehousing bubble, thehousing market correction andsubprime mortgage crisis.
According to theDepartment of Labor, roughly 8.7 million jobs (about 7%) were shed from February 2008 to February 2010, and real GDP contracted by 4.2% between Q4 2007 and Q2 2009, making the Great Recession the worst economic downturn since theGreat Depression. The GDP bottom, or trough, was reached in the second quarter of 2009 (marking the technical end of the recession that is defined by "a period of falling economic activity spread across the economy, lasting more than a few months, normally visible in real GDP, real income, employment, industrial production, and wholesale-retail sales").[15] Real (inflation-adjusted) GDP did not regain its pre-crisis (Q4 2007) peak level until Q3 2011.[16] Unemployment rose from 4.7% in November 2007 to peak at 10% in October 2009, before returning steadily to 4.7% in May 2016.[17] The total number of jobs did not return to November 2007 levels until May 2014.[18] Some areas, such as jobs in public health, have not recovered as of 2023.[19]
Households and non-profit organizations added approximately $8 trillion in debt during the 2000–2008 period (roughly doubling it and fueling the housing bubble), then reduced their debt level from the peak in Q3 2008 until Q3 2012, the only period this debt declined since at least the 1950s.[20] However, thedebt held by the public rose from 35% GDP in 2007 to 77% GDP by 2016, as the government spent more while the private sector (e.g., households and businesses, particularly the banking sector) reduced the debt burdens accumulated during the pre-recession decade.[21][22] PresidentBarack Obama declared the bailout measures started under the Bush administration and continued during his administration as completed and mostly profitable as of December 2014.[23]
In 2016 China surpassed the United States as theworld's largest economy when measured bypurchasing power parity (PPP).[24][a]

The considerable dependence of the industrialized world on oil starting in the 1930s, with much of the proved oil reserves situated in Middle Eastern countries, became evident to the U.S., first in the aftermath of the1973 world oil shock and later in thesecond energy crisis of 1979. Although in real terms oil prices fell back to pre-1973 levels through the 1980s, resulting in a windfall for the oil-consuming nations (especially North America, Western Europe, and Japan), the vast reserves of the leading Middle East producers guaranteed the region its strategic importance. By the early 1990s the politics of oil still proved as hazardous as it did in the early 1970s.
Conflict in the Middle East triggered yet another international crisis on August 2, 1990, whenIraq invaded and attempted to annex neighboring Kuwait.[25] U.S. officials feared that Hussein was then on the verge of armed conflict with oil-rich Saudi Arabia, a close ally of Washington's since the 1940s.[26] The United Nations condemned the invasion as an act of aggression;[27] President Bush compared Hussein toAdolf Hitler and declared that if the United States and international community did not act, aggression would be encouraged elsewhere in the world.[28][29] The Security Council gave Iraq a deadline to leave Kuwait, but Saddam Hussein ignored it, and the Security Council authorized a military response. The war began in January 1991, with U.S. troops forming the majority of the coalition which participated inOperation Desert Storm. By the time Iraqi troops withdrew from Kuwait in late February, Iraq had lost approximately 20,000 troops, with some sources citing as many as 100,000 casualties on the Iraqi side.[30][31][32]

In December 1992, President Bush sent troops to join the UNOperation Restore Hope, a multi-national effort to restore order and provide humanitarian aid in Somalia, which was torn by civil war, famine, and warlords.[33] By the summer of 1993, the situation had deteriorated. After 24 Pakistani soldiers were killed in June 1993, the UN passed a resolution calling for the arrest and trial of those responsible for the attack.[34] Under the leadership of newly elected PresidentBill Clinton, U.S. forces launched a concentrated attack on Aidid's stronghold inMogadishu inOperation Gothic Serpent. In October 1993, 18 soldiers were killed and 84 were wounded in theBattle of Mogadishu.[35] Following the attack, Clinton ordered U.S. forces withdrawn from the region, with the last being withdrawn by 1995, and fired his Secretary of DefenseLes Aspin who had not sent adequate forces.[36]
In the mid-1990s, the United States was involved in theBosnian War through theNorth Atlantic Treaty Organization (NATO), most notably the1995 bombing campaign,[37] which finally led to theDayton Peace Agreement which ended the war by the end of 1995.[38] In early 1998, the region became volatile again as war erupted between the army of theFederal Republic of Yugoslavia and theKosovo Liberation Army, a guerrilla group.[39] A1999 NATO bombing campaign struck Yugoslavia, resulting in the deaths of hundreds of Yugoslavian soldiers and civilians. As a result, Yugoslavia withdrew from Kosovo and Kosovo became an independent state.[40]
President Clinton also orderedcruise missile strikes on Iraq in 1996 andbombing attacks on Iraq in 1998,[41] which were launched in response to Saddam Hussein's violation of several UN resolutions, including repression of ethnic minorities (Kurds) and removing UN weapons inspectors. The 1998 campaign, in particular, was meant to de-stabilize the Iraqi government and degrade the power of Hussein. Clinton also signed theIraq Liberation Act to appropriate funds to Iraqi opposition groups in the hopes of overthrowing Hussein's regime and establishing democracy.[42]
Throughout the 1990s, the United States also played an active role inpeace efforts in theIsraeli–Palestinian conflict. President Clinton, Israeli Prime MinisterYitzhak Rabin, and Palestinian Prime MinisterYasser Arafat met and signed theOslo Accords in 1993, which called for the gradual ceding of control of Palestinian areas to the Palestinians in exchange for peace.[43] However, Rabin was assassinated in 1995 and by 2000, theCamp David Summit failed to yield a new agreement.[44][45]
The 1990s also featured a series of increasingly violent attacks associated withIslamist terrorists, includingal-Qaeda, a radical Islamist militant organization led byOsama bin Laden. On February 26, 1993,a truck bomb was detonated at theWorld Trade Center in New York City, killing six civilians and injuring 919 others, 88 firefighters, and 35 police officers. The attack was intended to destroy the foundation of the North Tower, knocking the tower into the South Tower, which would destroy both buildings and kill thousands of people. While this did not happen, the bomb caused considerable damage to the lower levels of the North Tower. In 1994, four men were convicted of carrying out the bombing and in 1997, two men were convicted for their roles, including the truck driver and the mastermind,Ramzi Yousef.[46][47]
On June 25, 1996, members ofHezbollah Al-Hejazbombed the Khobar Towers, a complex in Khobar, Saudi Arabia, where members of theUnited States Air Force were being housed, killing 19 American airmen and injuring over 300 other people.[48]
On August 7, 1998, Al-Qaedabombed the U.S. embassies in Kenya and Tanzania, killing 224 people, including 12 Americans.[49] The U.S. launched cruise missile strikes on a terrorist training camp in Afghanistan,[50] yet this failed to destroy al-Qaeda's vast network.
On October 12, 2000, al-Qaeda militantsbombed the USSCole off the coast of Yemen, killing 17 U.S. sailors and severely damaging the ship.[51]

On the morning of September 11, 2001, four airliners were hijacked by 19 members of the terrorist organizational-Qaeda.[52] The first hijacked airliner,American Airlines Flight 11, struck theNorth Tower of theWorld Trade Center at 8:46 A.M. (EST) in New York City; with a second,United Airlines Flight 175, striking theSouth Tower less than twenty minutes later at 9:03 A.M. (EST), resulting in the collapse of both 110-story skyscrapers, and the destruction of the World Trade Center.[53] The third hijacked plane,American Airlines Flight 77, was crashed intothe Pentagon (the headquarters of theUnited States Department of Defense) inArlington County, Virginia, demolishing a section of the outer southwest facing wall.[54] After passengers discovered that their plane,United Airlines Flight 93, was going to be used as a missile, they attempted to regain control of the aircraft which had been redirected towards Washington, D.C.[55] However, the hijackers crashed the plane close to arural community nearShanksville, Pennsylvania.[56] It is believed that the target of Flight 93 was either theWhite House or theCapitol. In total, the attacks killed 2,996 people—2,507 civilians, 343 firefighters, 72 law enforcement officers, 55 military personnel, and the 19 terrorists.[57] The 9/11 attack was the single deadliest international terrorist incident and the most devastating foreign attack on American soil since theJapanese surprise attack on Pearl Harbor on December 7, 1941.[58] It refocused American attention to a long war on terrorism, beginning with an attack on al-Qaeda and its Taliban supporters in Afghanistan.

Following the 9/11 attacks, Congress passed theAuthorization for Use of Military Force Against Terrorists, authorizing the president "all necessary and appropriate force against the nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001."[59] This act resulted in the2001 invasion of Afghanistan, in PresidentGeorge W. Bush's broader globalwar on terrorism. The objective of the 2001 invasion, known asOperation Enduring Freedom, was to remove theIslamic fundamentalistTaliban lead government from power in Afghanistan, and to capture top level al-Qaeda leaders, including its founder Osama bin Laden.[60] The invasion, fought in conjunction with the U.S.'s NATO allies, began on October 7, 2001, quickly leading to the overthrow of the Taliban government and implementation ofHamid Karzai as Afghanistan's interim president.[61][62] In early 2002, after theBattle of Tora Bora and success withOperation Anaconda, the United States began focusing on military intervention in Iraq, shifting military and intelligence resources away from Afghanistan in the war on terror, with U.S. Secretary of DefenseDonald Rumsfeld stating in May 2003 that the "major combat" in the conflict was over.[63][64] With the approval of the newAfghan Constitution by theLoya jirga andelection of President Karzai in 2004, Afghanistan later held its firstparliamentary elections in over 30 years in 2005.[65][66][67]

With a total of 22,000 U.S. troops deployed in Afghanistan by May 2006,[68] the U.S. joined in theISAF leadOperation Mountain Thrust. In the attempt to quell theTaliban insurgency in southern Afghanistan, more than 1,000 insurgents and 150 ISAF troops were killed in the two-month operation, being the bloodiest period since the start of the war in 2001.[69] With ISAF assuming complete command of security forces in Afghanistan in October 2006, the U.S. saw mounting skepticism from European allies over the war at the2006 Riga summit.[70][71] U.S.–Afghan diplomatic relations began to flare after the August 2008Azizabad airstrike in Herat Province, which killed 91 civilians, including 60 children and 15 women.[72][73] The attack sparked protest over "collateral damage"; with a 40% increase in civilian deaths in 2008.[74]
In September 2008 President Bush announced he would shift 4,500US Armed Forces troops from Iraq to the conflict in Afghanistan.[75] This was followed with recently elected PresidentBarack Obama announcing in February 2009 that the United States would deploy an additional 17,000 troops to Afghanistan.[76] The Obama administration also later announced a "troop surge" of an additional 30,000 US military forces to be deployed in the summer of 2010, and to begin withdrawals of the 100,000 total US troops in July 2011.[77] With the surge in effect, theNATO-ledInternational Security Assistance Force (ISAF) launchedOperation Moshtarak, an offensive determined to eliminateTaliban insurgents fromHelmand Province.[78] At 15,000 troops, it was the largest joint operation of the war.[79]
After a 2010 profile onUS Armygeneral and ISAF CommanderStanley McChrystal was published in the magazineRolling Stone,[80] McChrystal was forced to resign from his position after making controversial remarks about Obama administration officials.[81] President Obama then announced ISAF to be commanded by GeneralDavid Petraeus.[82]

On May 1, 2011, President Barack Obama announced that the US conducted anoperation that killedal-Qaeda leaderOsama bin Laden at hiscompound inAbbottabad, Pakistan.[83] The announcement drew worldwide praise, with spontaneous celebrations atGround Zero,Times Square, and outside of theWhite House.[84] The raid onbin Laden's compound in Abbottabad led to a rise indiplomatic tensions between the US and Pakistan.[85] With civilian deaths from the United States'drone program in so-called "signature strikes", the2011 NATO attack in Pakistan, which led to the deaths of 24 Pakistani military officers, and the closure ofNATO supply lines to neighboring Afghanistan,Pakistan–United States relations remain fractured as a result of the war on terror.[85][86][87]
In mid-2011 Obama announced the start of the withdrawal of the additional 33,000 troops deployed from the 2010 troop surge.[88] By December 2011, the first round of 10,000 troops were withdrawn, with the second round of 23,000 troops later withdrawn in September 2012.[89][90]
As of February 2014 a total of 2,307 US troops were killed and 19,656 injured due to the Afghanistan War.[91] Estimates from theCosts of Wars Project based atBrown University'sWatson Institute for International Studies also suggest that between 16,725 and 19,013 Afghan civilians died as a result of the war.[92]
TheInternational Security Assistance Force ceased combat operations and was disbanded in December 2014, with a small number of troops remaining behind in an advisory role as part of ISAF's successor organization, theResolute Support Mission. Unable to eliminate the Taliban through military means, coalition forces (and separately, the Afghan government led byAshraf Ghani) turned to diplomacy to end the conflict.[93]
In hisState of the Union address in January 2002, President George W. Bush called Iran,Iraq, and North Korea an "axis of evil".[94] The Bush administration later began making a public case for an invasion of Iraq, accusing them of violating the 1991 UN-imposedceasefire, supporting terrorism and being in possession ofweapons of mass destruction (later, the latter of these accusations were proved to be false, and the first two are considered very dubious by most historians).[95]
Some important allies of the U.S., including India, Japan, Turkey, New Zealand, France, Germany, and Canada, did not believe that the evidence for the President's accusations was well-founded enough to justify a full-scale invasion, especially as military personnel were still needed in Afghanistan. The UN Security Council did not approve of the invasion, and the U.S. therefore provided most of the forces in theinvasion of Iraq. With the support of a coalition whose major partners included the United Kingdom, Australia, Poland, Spain, and Italy, Iraq was invaded on March 20, 2003.

After six weeks of combat between the coalition and the Iraqi army, the invading forces had secured control of many key regions; Hussein had fled his palace, his regime clearly over; on May 1, President Bush declared, under a sign reading "mission accomplished", that major ground operations were at an end. Saddam Hussein's sonsQusay andUday were killed by U.S. forces; Saddam himself was captured in December 2003 and taken into custody. Nevertheless, fighting with theIraqi insurgency continued and escalated through the2004 U.S. national elections and beyond.
Withcasualties increasing and the cost of the invasion and reconstruction of Iraq estimated at over $200 billion, the war has lost about one-third of its supporters in the U.S. since the end of major operations was announced. Contemporary polls suggested that international displeasure with the United States was at an all-time high, with a majority of people in Europe believing that the country was too powerful and acted mainly in self-interest, and a vast majority in predominantly Muslim nations believing that the United States was arrogant, belligerent, or hateful to Islam.[96]
As the situation in Iraq became increasingly difficult and deadly, policymakers began looking for new options. This led to the formation of theIraq Study Group, a nonpartisan commission chaired byJames Baker andLee H. Hamilton. This produced a variety of proposals; some of the more notable ones were to seek decreased US presence in Iraq, increased engagement with neighboring countries, and greater attention to resolving other local conflicts, such as theIsraeli–Palestinian conflict. The recommendations were generally ignored, and instead, President Bush ordereda surge of troops to Iraq in 2007 and 2008. Violence in the country declined in 2008 and 2009, and the US combat role ended in August 2010. US forceswere withdrawn in large numbers in 2009 and 2010, and the war was declared formally over in December 2011.[97]

The 1990s and 2000s (decade) became known for several incidents ofdomestic terrorism, usually perpetrated by those dissatisfied with actions of the federal government, big business, or other aspects of American society.[98][99]
Throughout the 1970s and 1980s, a mysterious man known in the media as the "Unabomber" sentmail bombs to figures in the academic and airline industries for various reasons.[100] After a lull, he began another mail bombing campaign in earnest, beginning in 1993.[101] Two people were killed in the mid-1990s and an exhaustive and expensive investigation by the FBI coupled with intense national media interest in the story resulted in the identification and arrest of the perpetratorTheodore Kaczynski, who was sentenced to life in prison.
On April 19, 1995, atruck bombwas detonated outside theAlfred P. Murrah Federal Building inOklahoma City, Oklahoma, killing 168 people and injuring over 600.[102] The bombing became the deadliest act of domestic terrorism in the United States and led to sweeping reforms inUnited States federal building security.[103] The attack's perpetrator,Timothy McVeigh, was an anti-government extremist who used theWaco Siege andRuby Ridge incidents as justification for his retaliation against the federal government.[104] While McVeigh wanted to specifically target the federal agencies involved in the Waco siege, such as theATF andDEA,[105] the bombing killed many innocent civilians, including 19 children.[106] McVeigh was executed in 2001 and his accompliceTerry Nichols was sentenced to life in prison.[107]
In July 1996, in the midst of the1996 Summer Olympics atCentennial Olympic Park inAtlanta, Georgia,a homemade bomb was detonated, resulting in the deaths of 2 people and injuring over 100.[108] This was followed by similar attacks at twoabortion clinics and a lesbian nightclub.[109] In 2003, suspectEric Robert Rudolph was arrested and sentenced in 2005 to five life sentences for these attacks.[110][111]
In 2001, only days after theSeptember 11 attacks, letters laced withanthraxwere sent to several individuals, including prominent news personalities and government officials.[112] The letters killed 5 people and infected a further 17.[113][114] This incident ofbioterrorism was initially blamed on international terrorist organization al-Qaeda, but in 2008, was determined to stem from a Maryland scientist by the name ofBruce Edward Ivins, who committed suicide before he could be prosecuted.[115][116]
The crime epidemic that had begun during the late 1960s finally reached its climax in the early 1990s before starting a steady decline during the Clinton administration.[117][118][119] Nevertheless, ongoing addiction (involving sales of marijuana and cocaine) continued to be a major factor incrime in the United States. The overall rate of major crimes fell during the period. In 2009, the FBI estimated 1,318,000 violent crimes occurred nationwide, 1,425,000 in 2000, down from the 1991 level of 1,912,000.[120] Measured per capita, this was a 43% drop in violent crime rates.[121] At the time, it was believed that crime had declined because of stricter judicial sentencing practices, the implementation of Three Strikes laws, improving law enforcement technology that made it easier to catch felons, and the end of thecrack epidemic. But later statistical assessments ruled out most of these explanations, and tended to find that factors such as greater prosperity, lower alcohol consumption, generation-specific cultural effects, improved security technology, and decreases inleaded petrol[122][123][124] had probably caused most of the decline, whilepublic policy conversation began to regret the incarcerative policies of the preceding decades.[125]
In the 1990s and 2000s (decade), a number of highly publicized assaults against lesbian, gay,bisexual, andtransgender people occurred in the United States. The most well known of these was the murder ofMatthew Shepard in Wyoming after two young men kidnapped, tortured, and murdered him in 1998.[126] In 2009, Congress passed theMatthew Shepard Act, which extended the hate crime law to women, the disabled, and gays, lesbians, bisexuals, and transsexuals.[127]
A spate ofschool shootings rocked the country in the late 1990s and the 2000s, the most notable being the 1999Columbine High School massacre, that left 15 people dead, including both perpetratorsEric Harris and Dylan Klebold. The actions of Harris and Klebold would go on toinfluence many future mass killers. Others include theWestside Middle School shooting (1998), theRed Lake shootings (2005), theWest Nickel Mines School shooting (2006), theVirginia Tech shooting (2007), and theNorthern Illinois University shooting (2008).[128] Those shootings led to increased debate overgun politics andmedia violence, as well as an increased focus on mental health, school safety, and anti-bullying.
TheCapital Region was struck by theBeltway sniper attacks, a series of sniper attacks on civilians and federal workers by two gunmen over a month-long period in October 2002.[129] The attackers killed 10 people and injured three.[130] Two men were arrested and convicted.[131]
During the 2000s a series of high-profile child abduction cases occurred, includingDanielle van Dam (2002),Samantha Runnion (2002),Elizabeth Smart (2002),Carlie Brucia (2004), andJessica Lunsford (2005). These incidents led to a public outcry and demands for stricter laws against sex offenders, the most notable of which wasJessica's Law.
In 1992riots occurred in Los Angeles after four police officers were acquitted in the beating of black motoristRodney King.[132] The riots occurred primarily inSouth Central Los Angeles, a predominantly black and Hispanic area.[133] Fifty-five people were killed and more than 2000 were injured.[134] 3,600 fires were set, destroying over 1,000 buildings and widespread looting occurred, especially of businesses owned byKorean Americans.[135][136] In all, nearly $1 billion in damage was caused.[137]
In November 2009 US Army majorNidal Malik Hasan killed 13 fellow soldiers and injured 30 in theFort Hood shooting inKilleen, Texas.[138] While the act was called terrorism by some due to Hasan's Muslim heritage, the attack was ruled out by the FBI to have been perpetrated by a terrorist organization. On September 16, 2013, another mass murder on a US military base surpassed the incident when a former navy reservist fired a shotgun at theWashington Navy Yard Shooting, killing 12 civilian contractors and injured four more at the headquarters of theNaval Sea Systems Command (NAVSEA) inSoutheast Washington, D.C.
On January 8, 2011, U.S. RepresentativeGabby Giffords was the target of an assassination attempt, whena gunman went on a shooting spree, critically injuring Giffords, killing federal judgeJohn Roll and five other people, and wounding 14 others.[139]
On July 20, 2012,a man shot 70 people (up to that time, the highest number of victims of any mass shooting in American history) at a movie theater inAurora, Colorado, killing 12 and injuring 58 others.[140]
On April 15, 2013,two bombs exploded near the finish line of theBoston Marathon inBoston, Massachusetts, killing three people and injuring over 280.[141] Three days later, suspectsTamerlan andDzhokhar Tsarnaev led theBoston Police Department on a high speed chase, after killing one officer at theMassachusetts Institute of Technology.[142] Tamerlan was killed in a shootout with police[143] and a seriously injured Dzhokhar was taken into custody in nearbyWatertown the following day.[144]
On December 2, 2015, in the2015 San Bernardino attack, 14 people were killed and 22 were injured in amass shooting at a workplace Christmas party at theInland Regional Center inSan Bernardino, California. Both aworkplace shooting and aterrorist attack, the incident was perpetrated byRizwan Farook, a healthcare worker who was employed at the facility, and his wifeTashfeen Malik. The pair wereUS citizens of Pakistani descent who had becomeradicalized and had expressed a commitment tojihadism prior to the attack. The attack also included an attemptedbombing. Four hours after the attack, the perpetrators were killed by police in a shootout that left two officers injured.[145]
The population of the United States would increase between each of the decennial censuses held each 10 years.[146][147][148]
| Year | Total population | Change (%) from previous decennial census |
|---|---|---|
| 1990[146] | 248,709,873 | 9.8%[149] |
| 2000[147] | 281,421,906 | 13.1%[147] |
| 2010[148] | 308,745,538 | 9.7%[148] |
From the early 1990s to the mid 2010s vast technology changes would be seen in the United States such as: the number of wireless phones surpassing the number of landline phones,[150] Internet usage becoming common among the population[151] along with a large expansion in the number of actual internet users.[152]
The usage of landline phones would decline while that of wireless phones would increase. The percentage of American adults having wireless instead of landline would be surpassed in December 2008 and the percent of homes being solely wireless would surpass those having both wireless and landline in June 2015.[150]
According to Our World in Data the usage of the internet grew during this time period going from 2.98 million internet users in 1991 to 281.59 million by 2016.[153] 2008 would mark the first time that the country with the most internet users (the number of people who use the internet) was not the United States as China surpassed the country that year.[154] Dial up internet was initially the most common way to connect to the internet but was later surpassed by broadband internet.[155]
| Year | Number of users (million) |
|---|---|
| 1991 | 2,983,260 |
| 1992 | 4,476,134 |
| 1993 | 5,966,169 |
| 1994 | 12,909,458 |
| 1995 | 24,774,406 |
| 1996 | 44,473,576 |
| 1997 | 59,113,944 |
| 1998 | 83,093,130 |
| 1999 | 99,941,040 |
| 2000 | 121,261,010 |
| 2001 | 139,526,820 |
| 2002 | 168,763,680 |
| 2003 | 178,864,930 |
| 2004 | 189,603,260 |
| 2005 | 200,992,860 |
| 2006 | 205,918,290 |
| 2007 | 226,383,170 |
| 2008 | 225,678,050 |
| 2009 | 218,696,660 |
| 2010 | 223,000,910 |
| 2011 | 219,023,780 |
| 2012 | 236,885,150 |
| 2013 | 228,559,090 |
| 2014 | 235,874,220 |
| 2015 | 243,141,000 |
| 2016 | 281,594,620 |
Internet based services that had their debuts were such as:Uber (originally known as UberCab until rebranding in October 2010) in June 2010 which initially operated in San Francisco,[156] and Airbnb in 2008.[157] Social media platforms from or based in the United States that launched includedInstagram in October 2010,[158] and Snapchat in 2011 by 3Stanford University students.[159]

A number of different events would happen pertaining to the United States relating to space exploration during this period. The United States would participate in the now RussianMir space station sending 7 astronauts to the station between 1994 and 1998 in 10 separate Space Shuttle missions.[160] However Mir was later deorbited in 2001 and replaced with theInternational Space Station.[161]
TheSpace Shuttle program would be continued. In 2003,Space Shuttle Columbiaburned up in the atmosphere upon its reentry to Earth. After the shuttle burned up killing all 7 crew members an official governmental investigation was carried out and President Bush addressed the country about the shuttle.[162] The Space Shuttle program was retired in 2011 doing its final flight that year.[163]
Voyager 1, launched in 1977 byNASA became the first spacecraft to enter interstellar space in 2012. WhileVoyager 2 (also launched in 1977 by NASA) entered interstellar space in 2018 becoming the second spacecraft to do so.[164] The first flyby ofPluto ever was done by NASA'sNew Horizons probe in 2015.[165] TheDawn space probe launched by NASA in 2007 visited the asteroidVesta in 2011 being the first spacecraft to orbit an asteroid before later leaving next year to visit the dwarf planetCeres entering its orbit in 2015.Dawn would be the first space craft to visit and orbit a dwarf planet.[166]
The divorce rate which was previously much higher in the 1980s and 1990s after divorce became much easier to do, started to lower in the early 21st century with it declining.[167] Starting in 2004 the percentage of adults who were from 18 to 29 and happened to be single or never married grew while the number of those who were "currently married" declined.[168]
In terms of marriage, the median age increased for both men and women which was an ongoing trend since the late 1950s.[169] While the number of marriages per 1,000 people declined between 1991 and 2016[170] along with the percentage of households where the head of house was a married also declined.[169]
A new common practice relating to families that came about wasgender reveal parties where the sex of the baby is revealed which became popular starting in 2008 after a blogger posted about doing it. Usually with gender reveal parties if it is a boy the color blue is used and for girls pink is used.[171][172][173]
The United States hosted the1996 Summer Olympics in Atlanta.[174] During the 1996 Summer Olympics, the United States won the most amount of medals in total.[175] The United States also hosted the2002 Winter Olympics in Salt Lake City.[176] However compared to the 1996 Summer Olympics, the United States won the 2nd highest amount of medals overall.[177]
On August 24, 1992, the category-fiveHurricane Andrew made landfall inSouth Florida, devastating the southern suburbs of Miami, includingHomestead,Kendall, andCutler Ridge. Two days later, the storm made landfall again in a sparsely populated part ofLouisiana, with relatively less damage than in Florida. The storm killed 26 people directly, 39 indirectly. With $26 billion in damage, it became the costliest storm in history at that time. The storm was known for many controversies including the sluggish federal response, which may have impacted President George H. W. Bush's image on domestic issues, as well as poor housing construction which may have led to such high levels of destruction.

In March 1993, a massive storm, known as the "Storm of the Century" or "Superstorm" struck theEastern Seaboard of the United States. The storm set low pressure records; produced hurricane-force winds, storm surge, and killer tornadoes in Florida; and produced snowfall up to 2 feet (61 cm) across many portions of the Eastern United States. The storm was particularly crippling to the Southern United States, where places likeBirmingham, Alabama received one-and-a-half feet of snow and record low temperatures, highly unusual for the region. In all, 300 deaths were attributed to the storm and $6 billion in damage was caused.
TheGreat Flood of 1993 affected theMidwestern United States in the spring and summer of that year, devastating large portions of theMississippi andMissouri River Valleys and their tributaries. Many small towns were devastated and agricultural losses were significant. 10,000 homes were destroyed and 15 million acres (61,000 km2) of agricultural lands were inundated. 50 people perished in the floods and $15 billion in damage was done.
In the early morning hours of January 17, 1994, theSan Fernando Valley region of Los Angeles was hit by a 6.7 magnitude earthquake, known as the "Northridge earthquake". The quake killed more than 70 people and injured 9,000. Most of the fatalities were attributed to collapsed buildings, parking structures, or freeways. Striking an urban area, it was very destructive, causing $20 billion in damage.
In July 1995, the city of Chicago was hit bya heat wave that had severe repercussions. During a five-day spell from July 12 to 16, the high temperature hovered from the mid 90s to the mid 100s. The heat index pushed 120 degrees on many days. The heat wave resulted in the deaths of over 700 people, many of whom were black, elderly, or poor. The event brought increased attention to these segments of the population and the importance of reaching out to them during heat waves, as well as the concept of theurban heat island effect, in which urban environments exacerbate heat and humidity levels. Additionally, power failures and lack of adequate warning and general preparedness aggravated the situation and may have contributed to such high fatalities.
In January 1996, theBlizzard of 1996 affected theNortheastern andMid-Atlantic United States, dumping up to 36 inches (91 cm) of snow on many areas, crippling major American cities like Washington, D.C.,Baltimore,Philadelphia, New York City, and Boston. The storm killed 150 people and caused $3 billion in damages.
On May 3, 1999,a violent tornado outbreak struck the SouthernGreat Plains, predominantlyOklahoma. The most destructive tornado was an F5 tornado that struck Oklahoma City and the suburb ofMoore. The tornado is one of the most prominent examples of a tornado striking a major urban area and became the first tornado to incur over $1 billion in damages. In all, the outbreak resulted in 50 deaths and over 600 injuries.
In 2004, four hurricanes—Charley,Frances,Ivan, andJeanne—struck the state of Florida in a one-month timespan, resulting in over 100 U.S. deaths and nearly $50 billion in damage combined. Out of the four hurricanes, Ivan was the deadliest in the U.S., while Charley was the most destructive.

2005 broughtthe second-most active Atlantic hurricane season in recorded history, only beaten by2020. In August 2005, the powerfulHurricane Katrina struck theGulf Coast region. Katrina broke thelevees ofNew Orleans, Louisiana and flooded 80% of the low-lying city. Extensive devastation and flooding also occurred fromMobile, Alabama west toBeaumont, Texas, with theMississippi coastline especially hard hit. At least 1,800 people died in the worst domestic calamity since the1928 Okeechobee hurricane. Port facilities, oil rigs and refineries in the Gulf region were damaged, further increasing already high U.S. fuel prices. Residents of New Orleans, many of whom were impoverished and unable (or unwilling) to evacuate before the storm, were trapped for days by the flood waters. Tens of thousands had to be rescued by the U.S. military from their rooftops or from unsanitary and dangerous shelters in public buildings. State and local authorities were overwhelmed by the scale of the events. Their response to the disaster, as well the federal government's, were harshly criticized by legislators and citizens who saw in the confusion a dangerous lack of readiness and inability to preserve public safety. President Bush promised that the federal government would underwrite the rebuilding of New Orleans and other storm-damaged areas, the cost of which was estimated to run as high as $200 billion. Only weeks after Katrina,Hurricane Rita struck the Texas/Louisiana border in September. Rita caused the largest evacuation in U.S. history, as millions of people fled the Houston area, as well as portions of Louisiana. Rita resulted in over 100 fatalities, the vast majority of which were indirect, occurring during the evacuation or in the aftermath of the storm. Additionally, $10 billion in damage was attributed to Rita. Later in the season,Hurricane Wilma struck the state of Florida in October 2005, killing 35 people and doing $20 billion worth of damage. The storm yielded the lowest pressure value ever recorded in history before making landfall in Florida, making it the most intense storm on record.
OnSuper Tuesday in February 2008, in the midst of heated primary elections in multiple states,a destructive tornado outbreak hit theMid-South region, spawning dangerous nighttime twisters across the region. A total of 87 tornadoes were reported. Over 60 people were killed acrossTennessee,Kentucky,Arkansas, and Alabama and hundreds were injured. Losses exceeded $1 billion. The outbreak was the deadliest outbreak in the US in 23 years, and brought renewed attention to the dangers of nighttime tornadoes, winter tornadoes, and the vulnerability of populations in the Southern United States.
In September 2008, after two straight years of not being affected by a serious hurricane,Hurricane Gustav caused $18 billion in damage in Louisiana, and a few weeks later, theGalveston, Texas andHouston, Texas areas were devastated byHurricane Ike with over $31 billion in damage, making Ike the third most destructive hurricane ever to hit the United States behind Hurricanes Andrew and Katrina. Over 100 people were killed. The hurricanes also caused gas prices to spike to around $4 per gallon.

In the spring of 2011, several major tornado outbreaks affected theCentral and Southern United States. Forty-three people were killed ina tornado outbreak from April 14–16.[178][179] Approximately 350+ people were killed ina tornado outbreak from April 25–28, the deadliest US tornado outbreak in 75 years (since the 1936Tupelo-Gainesville tornado outbreak).[180][181][182][183] States particularly hit hard by the outbreaks includedOklahoma,Arkansas,Mississippi,Tennessee,Georgia,North Carolina,Virginia, and most especially,Alabama, which sustained over 250 fatalities alone. The latter outbreak produced $10 billion in damage, making it the costliest tornado outbreak in history.[184] On May 22an EF5 tornado devastatedJoplin, Missouri, killing 154, injuring over 1,000 people, and causing $1–3 billion in damage, making it the deadliest single US tornado in 64 years and the costliest single tornado of all time.[185][186]
In August 2011,Hurricane Irene was the first hurricane to make landfall since Ike in 2008, striking theEastern Seaboard of the United States, making landfalls in North Carolina, New Jersey, and New York. The storm killed at least 45 people and caused $10 billion in damage. The storm was particularly notable for its extensive flooding in theNortheast, and a couple days later,Tropical Storm Lee made landfall inLouisiana, its remnants tracking to the Northeast for even more devastating floods.
In October 2012,Hurricane Sandy struck the East Coast of the United States, making landfall nearAtlantic City, New Jersey. The storm knocked out power to millions of people and caused flooding in parts of New York City along with devastation to theJersey Shore and portions ofLong Island andStaten Island. The storm has been blamed for 121 fatalities and is estimated to have caused at least $50 billion in damage.
In May 2013, at least 24 people were killed, 377 people were injured, and $1.5 to $3 billion in damage was caused whenan EF5 tornado struck theOklahoma City suburb ofMoore, which was hit by a deadly and destructive F5 tornado only 14 years prior.
Notable aviation disasters in the 1990s includedTWA Flight 800 crashing off the coast ofLong Island, en route to Paris, France, on July 17, 1996, due to an explosion of the fuel tank, killing 230 andEgyptAir Flight 990 crashing south ofNantucket, Massachusetts, en route toCairo, Egypt, on October 31, 1999, due to deliberate crashing by the first officer, killing 217. Shortly after the 9/11 terrorist attacks, the second-deadliest U.S. aviation incident occurred whenAmerican Airlines Flight 587 crashed inQueens, New York, en route to the Dominican Republic, on November 12, 2001, due to overuse of rudder controls by the pilot to counteract turbulence, killing 265 (including 5 on the ground).
On February 1, 2003, theSpace ShuttleColumbiadisintegrated upon re-entry to the Earth over parts of Texas and Louisiana duringSTS-107, resulting in the deaths of all seven astronauts.[187] The incident resulted from a piece of foam insulation that fell off during launch, which struck the shuttle, creating a hole that allowed hot gases to penetrate the shuttle during re-entry.[188] In the aftermath of the disaster, theSpace Shuttle program was suspended for 29 months asNASA investigated the incident and made plans to prevent future tragedies.
On February 17, 2003,a stampede occurred at the E2 nightclub in Chicago, after an incident involving pepper spray, resulting in the deaths of 21 people.[189] Three days later, on February 20, 100 people perished and over 200 were injured inThe Station nightclub fire inWest Warwick, Rhode Island, when pyrotechnics ignited flammable sound-proofing during a performance by the bandGreat White.[190] Both incidents brought attention to the need to crack down on building, fire, and safety code violations to prevent future tragedies.A porch collapse that killed 13 and seriously injured 57 in June 2003 in Chicago further emphasized the problems with building code violations in the United States.
On August 1, 2007, theI-35W Mississippi River bridge inMinneapoliscollapsed into the Mississippi River, killing 13 people and injuring over 50. The bridge was under construction at the time. The incident brought to attention the need to inspect and rehabilitate the aging infrastructure system in the United States.

On April 20, 2010, anoffshore oil drilling rig, theDeepwater Horizon,exploded and burned off the coast ofLouisiana in theGulf of Mexico.[191] Dozens of workers fled the flames and were rescued by lifeboats and helicopters, however 11 were killed and 17 were injured in the incident. The rig burned for 36 hours before sinking. On April 24, it was discovered that a damaged wellhead was leaking oil into the Gulf of Mexico at a rapid rate. For approximately 90 days, tens of thousands of barrels of oil leaked into the ocean every day, resulting in the largest oil spill in United States history. The wellhead was successfully contained in mid-July, stopping the flow, and the well was completely sealed on September 18.[192] Despite significant efforts to protect coastlines, the spill had devastating impacts on the environment and the economies of theGulf Coast states. The Obama administration, and civil settlements with theJustice Department and Gulf Coast states, ordered well operatorBP responsible for the $15 billion cleanup costs.[193][194] The spill resulted in negative public approval ratings of the US government, the Obama administration, and BP, for their handling of the spill, with BP suffering the worst ratings.[195][196]

After 1970 the U.S. began importing oil, as consumption kept rising and the nation's oil fields became less productive. Throughout the 1990s the world price of crude oil ranged between $10 and $40, and the average price at the pump did not exceed $1.40. Oil prices tripled after 2002, peaking at $147 in July 2008, about $4 a gallon; the price has continued to fluctuate widely.[198] The theme of "energy independence" led to legislation mandating more fuel efficient autos—even electric vehicles—and more efficient use of energy, ranging from insulation to new light bulbs. Even worse than the high price, was the fear of shortages. Many proposals and pilot projects for replacement energy sources, fromethanol towind power andsolar power were discussed and, indeed, funded by Congress after 2000.[199] In theeconomic stimulus package signed by President Obama in early 2009, billions of dollars were allocated forresearch and development of new energy sources.
While public attention focused on supplies from the Middle East, the main source was Canada. After 2007, new methods of extraction opened up vast new deposits of oil in theBakken Formation in North Dakota and Montana. As much as two trillion dollars' worth of natural gas is potentially available in theMarcellus Formation deposits located in the historic 19th-century oil fields inAppalachia, stretching from West Virginia through Pennsylvania into western New York. However, there is sharp debate underway regarding the environmental impact on the region's fresh water supply.[200] The question of drilling in theArctic National Wildlife Refuge (ANWR) was highly controversial, as Republican proposals were blocked by the Democrats in Congress.[201] Republicans in 2008 were campaigning for more offshore drilling, with the slogan "drill, baby, drill", but the 2010 Gulf oil spill put all new drilling on hold.

Following the success of theFirst Gulf War,George H. W. Bush enjoyed very high approval ratings as president.[202] However, economic recession and areneged campaign pledge dogged Bush, sinking his formerly high approval ratings from the high 80s to the lower 40s and upper 30s. In the wake of Bush's political problems,Bill Clinton won the1992 contest with 43% of the vote in a three-way race against Bush's 38%. Independent candidateRoss Perot tapped the discontent of the electorate with both parties, drawing roughly evenly from both candidates[203] to receive a record 19% of the popular vote, but no electoral votes.[204] Perot's result qualified hisReform Party to receiveFederal Election Commission matching funds for campaign contributions in the 1996 election, thus laying the groundwork for another three-way race during the1996 presidential election.
Aged 46 when he took office in January 1993, Clinton was one of the youngest presidents in US history and the first born after WWII. Historians and political analysts immediately referred to him as marking a "generational shift" in American politics similar to when John F. Kennedy had become the first president born in the 20th century. His promising to focus on and resolve some of the United States' many domestic issues, he entered office with high expectations. Immediately, however, he was hurt when he had to withdraw major nominees (over nonpayment of taxes). Clinton'ssurgeon general,Joycelyn Elders, attracted controversy over public remarks that "it would be good for parents to teach their children about masturbation". Much of his planned activity was overwhelmed by the intense debate over his proposal to permit gays to serve in the military. In addition, the president had a difficult time gaining the respect of the US military establishment due to having been painted as a Vietnam War draft dodger. The outcome was a new "don't ask, don't tell" compromise policy and loss of initiative in other areas.[205]
One early domestic victory of theClinton administration was the enactment of the1994 Assault Weapons Ban.[206] The ban was widely decried by the Republicans, who allowed it to lapse in 2004 while they controlled both Congress and the presidency.[207] Bill Clinton'sproposal of a national health care system, championed by his wifeHillary Clinton,[208] ignited a political firestorm on the right, which vigorously opposed it on the general principle that government size should be reduced, not expanded. The proposed system did not survive the debate.[208] However Hillary Clinton did succeed, along with a bipartisan coalition of members of congress, in establishing theChildren's Health Insurance Program.

TheNew Deal, theGreat Society, andWatergate helped solidify Democratic control of Congress, but the 1980s and early 1990s were a period of fragmentation of their coalition, when the popularity of Democratic incumbents as constituent servants masked growing disenchantment with Congress' governing capacities. The strongly liberal policies of Clinton's first two years in office were also a cause of controversy, and the Democrats suddenly lost control of the House and the Senate for the first time in four decades in the1994 midterm elections. Once in power, House Republicans, led byNewt Gingrich, faced the difficulty of learning to govern after 40 years as the minority party while simultaneously pursuing their "Contract with America", which they unveiled on the steps of Congress on September 27, 1994.

Along with strong backing from traditional Democrats and liberals, Clinton was able to garner the support of moderates[who?] who appreciated his centrist "New Democrat" policies, which steered away from the expansion of government services of the New Deal and Great Society and allowed him to "triangulate", taking away many of the Republicans' top issues. One example of such compromises waswelfare reform legislation signed into law in 1996. The new law required welfare recipients to work as a condition of benefits and imposed limits on how long individuals may receive payments, but did allow states to exempt 20% of their caseloads from the time limits. Clinton also pursued tough[according to whom?] federal anti-crime measures, steering more federal dollars toward thewar on drugs, and calling for the hiring of 100,000 new police officers. Compromise came with difficulty, though, as the parties failed to agree on a budget, causing thefederal government to shut down in late 1995 into early 1996. By the end of his administration, the federal government had experienced the country's longest economic expansion and produced a budget surplus. The first year of the budget surplus was also the first year since 1969 in which the federal government did not borrow from theSocial Security Trust Fund.
The1996 Democratic National Convention in late August that nominated Clinton sparked protests, such as the one wherebyCivil Rights Movement historianRandy Kryn and 10 others were arrested by theFederal Protective Service;[209] later on, in November's1996 presidential election, Clinton facedBob Dole, Republican Senator from Kansas. An uninspired insider, Dole failed to attract the support of the GOP base and the incumbent president pulled to victory in the November election. Ross Perot ran for a second time, but was not allowed at the debate between Clinton and Dole and failed to attract as much support as he had in 1992. As a sign of the general cynicism and voter apathy during this period, turnout for the election was only 49%.
Many voters in 1992 and 1996 had been willing to overlook long-standing rumors of extramarital affairs by Clinton, deeming them irrelevant. These matters came to a head, however, in February 1998 when reports surfaced of ongoing sexual relations between Clinton and a White House intern,Monica Lewinsky. Clinton initially and vigorously denied the relationship; "I did not have sexual relations with that woman, Miss Lewinsky."[210] His wife Hillary described the allegations as fraudulent smears dredged up by a "vast right-wing conspiracy."[211] Clinton was forced to retract his assertions in August 1998 after the Lewinsky matter came under investigation byindependent counselKenneth Starr. Clinton was impeached in the United States House of Representatives, but acquitted at his trial by theU.S. Senate.[212] A public backlash forced Speaker Gingrich to resign after a poor showing in the1998 midterm elections. In 1999, RepublicanDennis Hastert of Illinois became Speaker of the House, a position he would hold until 2007, making him the longest-serving Republican Speaker of the House.

Though his2000 election had been the focus of intense controversy which led eventually to aU.S. Supreme Court ruling inBush v. Gore where the court ruled 5–4 in the former's favor by siding with the State of Florida's official vote count, Governor George W. Bush was sworn in as president on January 20, 2001. This made the 2000 election the third presidential election in which the electoral vote winner did not receive at least a plurality of the popular vote. Early in his term, Bush signed a $1.3 trillion federaltax cut aimed at revitalizing the economy, but the wars in the Middle East as well as assorted domestic spending packages passed by the Republican Congress led to ballooning Federal deficits. Other laws enacted in his first term included theNo Child Left Behind Act education reform bill in 2002, thePartial-Birth Abortion Ban Act in 2003 and theMedicare Prescription Drug, Improvement, and Modernization Act in 2004. The first eight months of his term in office were relatively uneventful; however, it had become clear by that time that the economic boom of the late 1990s was at an end. The year 2001 was plagued by anine-month recession, witnessing the end of the boom psychology and performance, with output increasing only 0.3% and unemployment and business failures rising.
On September 11, 2001, al-Qaeda terrorists hijacked four commercial airliners and attacked the World Trade Center andthe Pentagon in theSeptember 11 attacks, killing nearly 3,000 and injuring over 6,000 people. Osama bin Laden claimed responsibility for the attacks. President Bush ordered all flights grounded and U.S. airspace remained closed for the rest of the week. An emergency bailout package for the airline industry was passed, and stocks fell dramatically when markets re-opened the following week. In response to the attacks, the Bush administration and Congress passed the controversialPATRIOT Act, aimed at enhancing security, and established theDepartment of Homeland Security, a mass consolidation of many federal agencies charged with investigation, intelligence, and emergency management. A newTerrorist Finance Tracking Program monitored the movements of terrorists' financial resources but was discontinued after being revealed byThe New York Times.[213] Telecommunication usage by known and suspected terrorists was studied through theNSA electronic surveillance program. On October 7, 2001, the United States invaded Afghanistan as part of a globalwar on terrorism, aimed at rooting out al-Qaeda, theTaliban, and other terrorist organizations.[214]
In mid-2002, President Bush announced that Iraq possessed chemical and nuclear weapons and posed a "clear and present danger" to stability in the Middle East. Plans for a full-scale military invasion of the country began amid widespread controversy. Antiwar protests occurred around the US and numerous other countries, mostly carried out by left-wing organizations, but some on the right and various military and diplomatic figures also doubted the wisdom of this venture. Regardless, the invasion of Iraq commenced on March 20, 2003. The Iraqi Army disintegrated without much resistance and within three weeks, US troops entered Baghdad to an overjoyed mob of Iraqi civilians who proceeded to tear down the giant statue of Saddam Hussein in the middle of the city. Bush announced on May 1, 2003, from an aircraft carrier that major combat operations in Iraq were completed, with a "Mission Accomplished" banner serving as a backdrop. Although the war was initially popular, a guerrilla insurgency quickly began mostly by Al Qaeda operatives who had entered the country. Led by Abu Musab al-Zarqawi, a wave of bombings and beheadings of captives occurred, including the highly publicized killing of government contractor Nick Berg. Zarqawi was killed by US troops in 2005. Ineffective policing strategies led to a mounting death toll among soldiers, but eventually in 2007 a campaign known as "The Surge" began where the US Army launched a large-scale anti-terrorism offensive. Along with the help of Iraqi locals unhappy with the destruction caused by (largely foreigner) Al Qaeda agents, the surge resulted in the end of most major violence in the country. Late in 2003, Hussein was captured, and was subsequently put to trial before the Iraqi people and executed in 2006.
Meanwhile, the economy recovered from the early 2000s economic recession, with GDP growth rising to 7% in the middle of 2003, with continued growth through the mid-2000s. The unemployment rate peaked at 6% in 2003, before falling in 2004 and 2005, and dropping below 5% in 2006 and 2007.[12]
President George W. Bush wasre-elected in November 2004, defeating Democratic contender SenatorJohn Kerry in theelectoral vote, and receiving 50.7% of the popular vote against John Kerry's 48.3%. Republicans also made gains in both houses of Congress. President Bush's reelection was assured by public support for the war on terror, the dour Senator Kerry's lack of appeal to his voter base, and the excessive attacks made on the president by the left, which helped turn public opinion against them. In addition, it came out that Kerry, a Vietnam War veteran, had participated in antiwar protests after returning home in 1970, including throwing away his medals.
Some major acts in President Bush's second term included theEnergy Policy Act of 2005, theSafe, Accountable, Flexible, Efficient Transportation Equity Act, and theTroubled Asset Relief Program. After seeing high approval ratings for much of his first term,[215][216] Bush's popularity plummeted to record lows in his second term, due to his handling of the prolonged Iraq War,Hurricane Katrina, and the2008 financial crisis.
Democrats swept to victory in the2006 elections, making RepresentativeNancy PelosiSpeaker of the United States House of Representatives, the first woman in that position, and electing record numbers of women and minorities. Upon winning the elections, the Democrats drew up a100-Hour Plan of policy proposals upon assuming power in Congress. Major components of the plan included a pay-as-you-go plan for reducing the deficit; enacting the9/11 Commission recommendations; increasing thefederal minimum wage to $7.25 an hour; allowing the government to negotiate directly with pharmaceutical companies to secure lower drug prices forMedicare patients; and ending large tax subsidies for big oil companies to help foster energy independence.[217]
The 110th Congress did little to influence the war in Iraq besides passing a non-binding resolution against the Bush administration's troop surge. In addition, the House of Representatives passed a $124 billion emergency spending measure for war funding with the stipulation of a phased troop withdrawal. President Bush vetoed the bill because of the proposal of scaling down forces, making this the second veto of his term.
During the months of May–June 2007, SenatorTed Kennedy and other senators co-sponsored theComprehensive Immigration Reform Act of 2007. The purpose of this bill called for immigration reform under the intent of bringing amnesty and citizenship.[218] On June 28 the Senate voted 53–45 for cloture, with 60 votes needed, spelling the end to the 2007 Immigration Bill.[219]

In 2007, whileUS unemployment dropped to its lowest level since the year 2000, thehousing bubble reached its peak and economic growth slowed down, and by December 2007, the United States entered the severe long-lastingGreat Recession. By mid-2008, property values and the values of other assets plummeted, and the stock market crashed in October 2008, spurred by a lack of investor confidence as the liquidity of assets began to evaporate. With the decline in wealth and the lack of investor and consumer confidence, growth and economic activity came to a screeching halt and the job growth of previous years was soon wiped out, with mass layoffs and unemployment rising rapidly in late 2008, and continuing into 2009.[222][223]
Federal Reserve chairmanBen Bernanke told a federal commission in November 2009, "As a scholar of theGreat Depression, I honestly believe that September and October of 2008 was the worst financial crisis in global history, including the Great Depression." Of the 13 most important US financial institutions, "12 were at risk of failure within a period of a week or two".[224]
The Federal Reserve and the Treasury cooperated by pouring trillions into a financial system that had frozen up worldwide. They rescued many of the large financial corporations from bankruptcy – with the exception ofLehman Brothers, which wentbankrupt – and took government control of insurance giant AIG, mortgage banksFannie Mae andFreddie Mac, and bothGeneral Motors andChrysler.[225]
In October 2008, Bush sought, and Congress passed, theEmergency Economic Stabilization Act of 2008 (commonly referred to as the "bank bailout") with the goal of protecting the US financial system from complete collapse in the wake of the recession, which brought significant declines in the stock market. The bill provided federal government guarantees of up to $700 billion to troubled financial institutions through theTroubled Asset Relief Program (TARP). By 2010, only a fraction of that money was ever spent, as banks were able to quickly repay loans from the federal government or ended up never needing the money.
Meanwhile, unemployment doubled to nearly 10%, with states such as California and Michigan especially hard hit. While the stock market rebounded by 2011, and corporate profits had recovered, unemployment remained over 9% into 2011. The recession was worldwide, with Europe and Japan hard hit, while China, India and Canada fared much better.
The nation went into the2008 election cycle having a Republican president[226] and Democratic Congress[227] both with extremely low approval ratings. New York SenatorHillary Clinton had the inside track for the nomination but faced an unexpected challenge from Barack Obama, the nearly unknown junior Senator from Illinois. The GOP nominated Arizona SenatorJohn McCain. During the general election, Obama's youthfulness, charisma, and widespread media support proved effective against McCain, seen as a stodgy Washington insider. In addition, his relatively advanced age (72) and injuries from captivity in theVietnam War drew doubts over his health and stamina. Overall disillusionment with the Republican Party and George Bush's administration did not help McCain's cause, and his choice of Alaska governorSarah Palin as his running mate also drew some controversy. Obama also drew some doubts over his inexperience and controversial associations withWeather Underground founderWilliam Ayers and ReverendJeremiah Wright, the pastor of anAfrican-American church Obama had attended for years who was discovered to have made anti-white sermons. The decisive event was the collapse of the national financial system over the summer, launching a severe worldwide depression.[228] On November 4, 2008, Obama defeated McCain 365 to 173 in the electoral vote and 52.9% to 45.7% in the popular vote to become the44th president of the United States, making history in becoming the first African American to be elected to the highest executive office. Part of the strong showing came from a surge of support from younger voters, African Americans, Hispanics and independents. Democrats made further gains in Congress, adding to the majorities they had won in 2006.[229]
Obama's early policy decisions addressed theGreat Recession[230] and have included changes in tax policies,foreign policy initiatives and the phasing out of detention of prisoners at theGuantanamo Bay detention camp in Cuba.[231] Within a few weeks of taking office, the new president and Congress passed theAmerican Recovery and Reinvestment Act of 2009, which was ostensibly aimed at recovering from the economic collapse. This entailed a $700 billion stimulus package for the economy, although there were considerable questions over the amount of money spent or its actual effectiveness.[232]

A domestic initiative passed by the111th Congress and signed into law by President Obama was theAffordable Care Act, an important statute guaranteeing comprehensive medical coverage to all Americans, regardless of age, sex, pre-existing health conditions or ability to pay.[233] TheDon't Ask, Don't Tell Repeal Act, which allowed openly gay people to serve in the military, was enacted in 2010.[234]
In foreign policy, President Obamawithdrew US troops from Iraq in large numbers, bringing theIraq War to an end in December 2011. At the same time, he also increased troop levels in the Afghanistan War.[235] Early in his presidency, he successfully negotiated theNew START treaty with theRussian Federation, which made significant reductions in their nuclear arsenals. The US also maintained ongoing talks, led by Secretary of StateHillary Clinton, with North Korea over itsnuclear weapons program, as well as with Israel and thePalestinian Authority over atwo-state solution to theIsraeli–Palestinian conflict. In May 2011, President Obama announced in a televised speech to the nation thatal-Qaeda leader and culprit behind many deadly acts of terrorism (including theSeptember 11 attacks)Osama bin Ladenwas killed by US forces at a compound inAbbottabad, Pakistan.

Although the recession reached its bottom in June 2009 and began to move up again, voters remained frustrated with the slow pace of the economic recovery. In the spring of 2009,large protests erupted in Washington, DC from conservative groups who began calling themselves the "Tea Party" and who were particularly opposed to the controversial stimulus act. The Tea Party would end up in a few years as a springboard for a large-scale Republican revival. In the 2010 midterms, theGOP retook control of the House, although theSenate remained in Democratic hands.[236]
Under the new Congress, which had a Republican House and a Democratic Senate, President Obama and Congress clashed for months over whether or not to raise the debt ceiling and whether or not to extend the payroll tax cuts formiddle-income citizens that Obama signed into law. After months of heated debate, the debt ceiling was ultimately raised and the tax cuts extended. However, Obama's approval ratings continued to hover at around 46%,[237] while Congress had an even lower approval rating of 11%.[238]
In the 2012 presidential election, the GOP nominated former Massachusetts governorMitt Romney. Much like John McCain four years earlier, Romney was largely seen as a tepid moderate and a Beltway insider who did not inspire the conservative base of the Republican Party, nor independents. He also drew controversy for his stand onObamacare, which had been based on the system he implemented asGovernor of Massachusetts. Obama defeated his opponent to win a second term, with a tally in theElectoral College by 332 to 206 and in the popular vote by 51.06% to 47.21%. The electoral map remained the same as 2008, with the exception of North Carolina and Indiana flipping back as red states, and the party balance in Congress remained largely unchanged.
In theNovember 2014 midterm elections, theRepublican Party took control of the Senate andexpanded its majority in the House of Representatives, an event that portended an ill omen for the Democrats.
On December 17, 2014, PresidentBarack Obama announced a restoration of fulldiplomatic relations with Cuba for the first time since 1961. A deal between the United States andCuba was brokered during 18 months of secret talks hosted by Canada, with a final meeting hosted byPope Francis atthe Vatican. Although theUS embargo remains in effect and ordinary tourism by Americans is still prohibited, the United States will ease travel restrictions, release three Cuban spies, and open anembassy in Havana.[239]
The New York Times reported in January 2015:[240]
In short: The state of union, while far stronger than when Mr. Obama took office, remains troubled. The financial crisis has ended, with job growth picking up and the American economy among the world's strongest right now. Yet the great 21st-century wage slowdown continues, with pay raises for most workers still meager. In other positive news, the deficit has fallen sharply, thanks to a combination of slower health-cost growth and budget cuts (the latter championed by Republicans). Many more people have health insurance, thanks to Mr. Obama's health law. More people are graduating from college—although Mr. Obama is likely to fall short of his vow to have the United States lead the world in college graduates by 2020.
On the negative side, climate change appears to be accelerating, creating serious health and economic risks. The fall in gasoline prices, though welcome for many struggling families, won't help the climate. And with Mr. Obama delivering his address the day after Martin Luther King's Birthday, it's also worth remembering that the country's racial divides remain deep, with African-Americans still far behind other Americans by many measures.

On June 26, 2015, the Supreme Court ruled, 5–4, in the case ofObergefell v. Hodges thatsame-sex marriage was a constitutionally protected right under the14th Amendment. Shortly before the ruling, polling showed the majority of Americans approving of same-sex marriage. The ruling was celebrated by many, and President Obama advertised his support for the ruling by coloring theWhite House ingay pride colors using lights. This ruling was not achieved without controversy, as it did little to change the minds of those that disapproved of homosexuality in general.
In regards to the Supreme Court, President Obama faced three vacancies during his administration. JusticeDavid Souter retired in June 2009 and the president nominated as his replacementSonia Sotomayor, the first Hispanic Supreme Court Justice in US history. JusticeJohn Paul Stevens retired exactly one year later and Obama replaced him withElena Kagan. JusticeAntonin Scalia died on February 13, 2016. President Obama nominatedMerrick Garland as his replacement, but the United States Senate, led by Republican Majority LeaderMitch McConnell refused to give Garland a hearing, instead arguing that the winner of the ongoing presidential election be given the opportunity to nominate Scalia's replacement instead. JusticeRuth Bader Ginsburg was pressured by liberal groups to retire while the Democrats remained in control of the White House, but declined to do so.
On September 25, 2015,John Boehner announced that he would step down as Speaker and resign from Congress at the end of October 2015. Boehner's resignation took place afterPope Francis'address to Congress the day before, an event considered by Boehner as a high point in his legislative career. Boehner was replaced byRepublicanPaul Ryan, the U.S. representative for Wisconsin's 1st congressional district and former candidate for vice president along withMitt Romney. Sources in Boehner's office indicated he was stepping aside in the face of increasing discord while trying to manage passage of a continuing resolution to fund the government. Conservative opposition to fundingPlanned Parenthood as part of the resolution, and stronger threats to Boehner's leadership on account of the controversy, prompted the abrupt announcement.[241] Members of the caucus indicated that the resignation opened the way for a "clean bill" for government funding to pass, and "a commitment [was] made that there [would] be no shutdown."[242]
Some Americans saw thepresidential candidacy of Barack Obama, and hiselection in 2008 as the firstblack president of the United States, as a sign that the nation had, in fact, become post-racial.[243][244] Theconservative radio hostLou Dobbs, for example, said in November 2009, "We are now in a 21st-century post-partisan, post-racial society."[245] Two months later,Chris Matthews, anMSNBC host, said of President Obama, "He is post-racial by all appearances. You know, I forgot he was black tonight for an hour."[246]
However, public opinion on whether the United States is post-racial is itself divided starkly by race. In aWashington Post/ABC News poll conducted in December 2014, about 50% of white respondents said they believed that the justice system treats Americans of all races equally, but only 10% of African Americans said the same.[247] In the spring of 2015, according to aGallup poll, 13 percent of black Americans surveyed identified race relations as the most important problem the United States faces, compared with 4 percent of white Americans.[248]
Arguments that the United States isnot post-racial frequently emphasize the treatment of African Americans and other racial minorities in the criminal justice system and in interactions with the police. Killings of unarmed African Americans,often by police officers, have been widely publicized. In 2015, according to a study byThe Guardian, police officers in the United States killed 7.13 black Americans per million, compared with 2.91 white Americans per million.[249] Additionally:
Young black men were nine times more likely than other Americans to be killed by police officers in 2015, according to the findings of a Guardian study that recorded a final tally of 1,134 deaths at the hands of law enforcement officers this year.Despite making up only 2% of the total US population, African-American males between the ages of 15 and 34 comprised more than 15% of all deaths logged this year by an ongoing investigation into the use of deadly force by police. Their rate of police-involved deaths was five times higher than for white men of the same age.[250]
Such killings had a marked effect on public perceptions ofrace relations in America. The 13 percent of black Americans who called race relations the most pressing problem in the United States in the spring 2015 Gallup poll dwarfed the 3 percent that Gallup reported at the beginning of 2014.[248] And the percentage of white Americans who said race relations were the most important issue rose to 4 percent in 2015 from 1 percent in 2014.[248]
In response to high-profile incidents such as the fatal shootings ofMichael Brown,Aiyana Jones,Trayvon Martin,Laquan McDonald,Tamir Rice, andWalter Scott, and the death ofFreddie Gray from a spinal-cord injury sustained in police custody, academics[244] and journalists[251] have denounced claims that America is post-racial.Ta-Nehisi Coates wrote inThe Atlantic in 2015 that the phrase "post-racial" was "usually employed by talk-show hosts and news anchors looking to measure progress in the Obama era."[251] AndAnna Holmes wrote inThe New York Times, "Chattel slavery and the legacies it left behind continue to shape American society. Sometimes it seems as if the desire for a 'post-racial' America is an attempt by white people to liberate themselves from the burden of having to deal with that legacy."[252]
The divide in public opinion on the status of race in America was reflected in reactions to theBlack Lives Matter movement. In response to the "black lives matter" rallying cry, some people, including politicians, began using the phrase "all lives matter".[253][254][255] In August 2015, after a sheriff's deputy inHarris County, Texas, was fatally shot while pumping gas,[256] Sheriff Ron Hickman claimed that the rhetoric of Black Lives Matter activists had contributed to the killing and said, "We’ve heard 'black lives matter'. All lives matter. Well, cops’ lives matter, too. So why don't we just drop the qualifier and just say 'lives matter', and take that to the bank.'[257] Supporters of the Black Lives Matter movement criticized the "all lives matter" phrase, arguing that it minimized the systemic threats faced by African Americans.[258][259][260] President Obama said in October, "There is a specific problem that is happening in the African-American community that's not happening in other communities."[261]Andrew Rosenthal wrote, similarly, inThe New York Times, "The point of 'Black Lives Matter' is that the lives of African-Americans have come under special and deadly threat since before the birth of this country."[262]
Evidence of continued racial divisions in the United States can also be found indemographics. For instance, African Americans account for less than 15 percent of the total population ofMichigan, but more than 82 percent of the population of the state's largest city, Detroit[263] — and Detroit, like many cities whose residents are predominantly black, has "self-segregated schools, dwindling tax bases and decaying public services".[264]

Even after the end of thecrack epidemic, there remained alarge disparity in crime rates between black people and whites, with black people accounting for 28% of arrests in 2013; over 50% of homicides and robberies where the race of the offender was known were committed by black suspects.[265] As most crime is intraracial, most of their victims were black as well, and crime remained concentrated within black communities. Due to high crime rates, many inner city areas were heavily policed, often by police forces drawn from the population of the greater urban area rather than the local, primarily black, population, resulting in many black people feeling that they were being discriminated against by law enforcement. By 2009, black people accounted for 39.4% of the prison population in the United States. The incarceration rate of black males was over six times higher than that of white males, with a rate of 4,749 per 100,000 US residents.[266][267][268]
In August 2014,Darren Wilson, a white policeman inFerguson, Missourishot and killed Michael Brown, an 18-year-old unarmed black man who had robbed a nearby convenience store fifteen minutes earlier. While a grand jury investigation found that Wilson had acted in self-defense after Brown attacked him on two separate occasions, locals hostile to the police claimed that Brown had beengunned down while surrendering. Racial tensions in Ferguson between the mainly black population and mainly white police force led to both peaceful protests and riots, and several buildings were looted andset on fire. In response, theFerguson Police Department deployed military-grade riot gear andriot control weaponry to disperse crowds and maintain order. Further protests erupted after thedeath of Eric Garner, a 43-year-old black resident ofStaten Island, New York who died after being put in a nineteen-second long chokehold byNew York City Police Department officer Daniel Pantaleo while resisting arrest. Garner was being investigated by the NYPD under suspicion of illegally selling cigarettes. Pantaleo's acquittal by a grand jury in December led to nationwide protests by a movement which came to call itselfBlack Lives Matter.[269]
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