Trump with SheriffJoe Arpaio, a prominent supporter of the "birther" conspiracy theory falsely alleging that PresidentBarack Obama was not born in the United States[1]
Said atCPAC on February 27, 2015, when asked about his thoughts about Bill Clinton: "Nice guy, got a lot of problems coming up in my opinion with the famous island with Jeffrey Epstein, a lot of problems."[19][20](Remarks start at 22:50)
Allegations of Hillary Clinton spying on Trump[54][55][56]
Russiagate hoax. Trump and his defenders have used terms like "Russia hoax",[a] "Russian collusion hoax",[57] and "Russiagate hoax"[67] to delegitimize accusations and investigations of alleged impropriety, cooperation, collusion, or conspiracy between the Trump campaign and the government, officials, and intelligence agencies of Russia. They assert that such accusations are a hoax perpetrated against Trump by his critics and that he is the victim of a witch hunt.[62][68] Trump and his supporters have produced no evidence of such a hoax.
The "hoax" accusation has been debunked by numerous sources[a] and is contradicted by investigative findings of what "the president, members of his campaign and his associates actually did".[69]
Pursued the theory thatUkraine, rather than Russia, interfered in the 2016 election[70][71][72]
To sow election doubt, Trump escalated the use of "rigged election" and "election interference" statements in advance of the 2024 election compared to the previous two elections—the statements described as part of a "heads I win; tails you cheated" rhetorical strategy.[73]
Claimed he won the popular vote during the2016 presidential election, saying "I think there was tremendous cheating in California, there was tremendous cheating in New York and other places".[76]
Claimed that Google manipulated votes in the 2016 election[77]
Tweeted that Google results were "RIGGED" against him.[78]
Referred to the first release of theTwitter Files as proof of "Big Tech companies, theDNC, & the Democrat Party" rigging the 2020 United States presidential election against him, declaring that "the termination of all rules, regulations, and articles, even those found in the Constitution" was necessary.[80]
Cited a study that between three and five million non-citizens voted in the2016 elections[81]
Claimed that videos produced byJames O'Keefe proved Hillary Clinton and Barack Obama had "hired people" and "paid them $1,500" to "be violent, cause fights, [and] do bad things" at Trump rallies.[82]
Claimed thatVladimir Putin said the 2020 presidential election was rigged by mail-in voting and that there would not have been a war in Ukraine if Trump had won.[83]
Claims of corrupt science, medicine, and statistics
Global warming conspiracy theory, claimed that "The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive."[85]
Vaccines cause autism, tweeted "Healthy young child goes to doctor, gets pumped with massive shot of many vaccines, doesn't feel good and changes - AUTISM. Many such cases!"[88] Tweeted, "I am being proven right about massive vaccinations—the doctors lied. Save our children & their future" and that parents "know far better than fudged-up reports."[89] At Republican debate, claimed " Just the other day, two years old, 2½ years old, a child, a beautiful child went to have the vaccine, and came back, and a week later got a tremendous fever, got very, very sick, now is autistic."[90]
Tweeted infographic falsely stating that whites killed by blacks constitute 81% of crime, citing the nonexistent "Crime Statistics Bureau — San Francisco"[93]
Referenced a conspiracy theory about Antonin Scalia's death, saying "they say they found a pillow on his face, which is a pretty unusual place to find a pillow."[113]
Cast doubt on whether the U.S. gold reserves were still atFort Knox.[116]
Alluded to the conspiracy theory thatImran Awan was hiding “missing” DNC servers in the middle of remarks about Russian election interference, asking “What happened to the servers of the Pakistani gentleman that worked on the DNC? Where are those servers?”[117]
Shared and then deleted an apparently AI-generated video, starring himself, promoting “medbeds”, a pseudoscientific medical device popularised byQAnon.[118]
Laura Loomer,[130] who has made false claims about several U.S. mass shootings, including that they were affiliated withISIS or that the shootings were entirely staged[131][132][133]
Sidney Powell, an attorney who joined the Trump legal team in 2020, although the team distanced itself from her after she publicly claimed that the 2020 election had been rigged by an elaborate international communist plot.[134] She filed and lost four federal cases, alleging voter fraud of "biblical" proportions and claiming that voting machines had been secretly programmed to switch votes from Trump to Biden.[135][136][137]
Rudy Giuliani, the formerMayor of New York City during theSeptember 11 attacks, best known in more recent years for his role as Donald Trump's attorney in various lawsuits pertaining to and a leading proponent of conspiracy theories about the2020 presidential election, such as that between 65,000 and 165,000 ballots in Georgia were illegally cast by underage voters, that between 32,000 and "a few hundred thousand" illegal immigrants voted in Arizona, and that from 8,021 to 30,000 votes in Pennsylvania were cast fraudulently by people voting in the names of deceased persons whose names had yet to be purged from voter rolls.[138]
L. Lin Wood, an attorney who promoted conspiracy theories about the 2020 presidential election, claiming that Trump had won the election with 70% of the vote, and that a secret cabal of international communists, Chinese intelligence, and Republican officials had contrived to steal the election from Trump.[139][140] Wood also claims that "no planes" hit the World Trade Center and Pentagon onSeptember 11, 2001, and that planes visible in the footage are "CGI".[141] He announced that he had "entered the public debate around the 'flat earth' issue", endorsing thebelief that it is flat.[142]
Kelly Townsend, an Arizona Senator sought out Trump in 2011 pushing the Obama birther conspiracy.[143][144][145] Townsend along withRoger Stone associateJerome Corsi, SheriffJoe Arpaio, and 2020 Maricopa County Sheriff candidate and then chief Arpaio staffer Jerry Sheridan, worked with informantDennis Montgomery.[144][146] In 2020, Townsend worked again withJerome Corsi claiming the election was stolen fromDonald Trump and emailed Corsi a document of Arizona Senators endorsing Trump electors for Vice PresidentPence, in an attempt to overturn the 2020 election.[147] In November 2020, Townsend assistedSidney Powell along with her birther conspiracy associate Dennis Montgomery who back in 2011 alleged Hammer and Scorecard was spying and used to hack into government computers and change Obama's birth certificate, and in 2020 with Townsend and Powell shifted his claims stating the supercomputer was being used to hack and flip votes in favor of Biden in 2020, and Townsend was listed as a key witness in Powell's Arizona election fraud case.[148][147][149][150] In the lead up to January 6, 2021, Townsend sponsored a bill that would designate Trump electors to Arizona and promoted the Arizona audit and stolen election claims.[151][152] Townsend has also been a leader of theanti-vax movement claiming in 2019 that all vaccines are communist.[153]
Rick Wiles, founder ofTruNews was granted press credentials by theTrump administration.[154][155] Wiles is known for pushing homophobic and anti-semitic conspiracy theories, including that theJews seek to take control of the United States to "kill millions of Christians" and stated, "9/11 wasn't done by the Muslims. It was done by a wildcard, the Israeli Mossad, that's cunning and ruthless and can carry out attacks on Americans and make it look like Arabs did it."[154][156] In July 2018, during the Trump administration, he claimed thatAnderson Cooper andRachel Maddow were going to lead a "homosexual coup on the White House" that would result in the nationally televised decapitation of theTrump family on the White House lawn.[157]
Roger Stone, long-term political advisor to Donald Trump. Suggested Seth Rich’s parents were paid off to avoid pursuing an investigation into his murder.[158] Posted a screenshot from Laura Loomer and claimed that Nikki Haley was "Constitutionally ineligible to be President".[159] Pardoned by Trump in connection with the Mueller investigation.[160]
Michael Flynn, retired U.S. Army lieutenant general and former National Security Advisor to Trump. Pledged an oath to the QAnon movement.[161] Asserted the COVID-19 pandemic was fabricated as "a distraction to what happened on 3 November," referring to the 2020 presidential election which he maintains was stolen.[162]
Marjorie Taylor Greene, member of the United States House of Representatives. Supported the QAnon conspiracy theory.[163] Promoted the theory that the Sandy Hook Elementary School shooting was staged.[164]
Tucker Carlson, political commentator. Promoted "the Great Replacement" conspiracy theory, that Democrats are importing immigrants to replace the current electorate with more "obedient" voters.[165] Alleged that the January 6th Capitol attack was a "false flag" FBI operation.[166]
Lou Dobbs, political commentator, author, and television host. Gave air time to birtherism theories as early as 2009.[169] One of three Fox Corporation program hosts named in a $2.7 billion defamation lawsuit bySmartmatic.[170] Supported the claim that Dominion’s machines were rigged to switch votes from Trump to Biden.[171]
Mike Lindell, businessman and political activist. Directed and starred inAbsolute Proof, in which he claimed that hackers infiltrated local election office computer systems to alter vote counts — which he calls the “largest cyber-crime in global history.”[174]
Christina Bobb, lawyer, television personality and Republican Party official. Named in a $1.6 billion defamation lawsuit by Dominion Voting Systems againstOANN.[175] Promoted the2021 Maricopa County presidential ballot audit.[176] Said during a podcast that she believed the political left sought to "normalize pedophilia."[177]
Dinesh D'Souza, political commentator, author, and filmmaker. Produced the film "2000 Mules”, which claims that 2,000 “mules” illegally collected and delivered 400,000 mail ballots to drop boxes across several key swing states during the 2020 presidential election.[178]
^In July 2025, while attempting various diversions from pressure to release theEpstein Files, Trump revived some old conspiracy theories and characterized them anew as accusations that former President Barack Obama and other officials had engaged in "treason", which prompted a rare response from the office of the former president. Eric Tucker, Chris Megerian,Trump’s treason claims against Obama and others prompt a rare response from the former president, The Associated Press, July 22, 2025; quote: “Our office does not normally dignify the constant nonsense and misinformation flowing out of this White House with a response”, said Patrick Rodenbush, an Obama spokesman. “But these claims are outrageous enough to merit one. These bizarre allegations are ridiculous and a weak attempt at distraction.”
^Louis Jacobson (August 29, 2018)."No, 96% of Google news stories on Trump aren't from left-wing outlets".PolitiFact. RetrievedAugust 22, 2024.This figure is based on a non-scientific study from a conservative website that categorized any media outlet not expressly conservative as being part of the "left." These outlets include wire services, broadcast networks and most major newspapers and collectively account for a large percentage of original news reports produced in the United States. The methodology essentially preordains that a large percentage of coverage captured by Google will be what the study defines as "left," which is wrong.
^Wilson, Jason (May 24, 2017)."How rightwing pundits are reacting to the Manchester attack".The Guardian. RetrievedJune 3, 2017.Paul Joseph Watson, Alex Jones's British mini-me, has followed the same broad path that the rest of the organization has. He was never on the left, of course, but over time his commentary has focused less and less on the Illuminati and chemtrails, and more and more on pushing a stridently anti-Muslim, anti-feminist and anti-left message.
^Sherman, Jake; Palmer, Anna; Ross, Garrett; Okun, Eli (November 19, 2020)."POLITICO Playbook PM: Rudy".Politico.Archived from the original on November 20, 2020. RetrievedNovember 19, 2020.