U.S. senators

• Tom Cotton,U.S. senator from Arkansas (2015–present)^[16][17]
• Joni Ernst,U.S. senator from Iowa (2015–present)^[16][18]

U.S. representatives

• Dan Crenshaw,U.S. representative fromTexas's 2nd congressional district (2019–present)^[16][19]
• Adam Kinzinger,U.S. representative fromIllinois's 16th congressional district (2011–present)^[20][21]
• Brian Mast,U.S. representative fromFlorida's 18th congressional district (2019–2023),U.S. representative fromFlorida's 21st congressional district (2023–present)^[16][22]

State legislators

• John Gard, formerstate assemblyman from the89th district (1993–2007),88th district (1987–1993) and formerspeaker of the Wisconsin State Assembly^[23]

Individuals

• Charlie Kirk, founder and president ofTurning Point USA^[20][24]
• Charlotte Rasmussen, chairman of theClark CountyRepublican Party, and withWomen for Trump^[20][25]

Organizations

• Combat Veterans for Congress^[26]
• New Politics^[20][27]
• Wisconsin Federation of Republican Women^[20][22]

Executive branch officials

• Tommy Thompson, former U.S. Secretary of Health and Human Services^[28]

U.S. representatives

• Sean Duffy, formerU.S. representative fromWisconsin's 7th congressional district (2011–2019)^[29]

State officials

• Sheila Harsdorf, former Wisconsin Department of Agriculture, Trade and Consumer Protection Secretary (2017–2019)^[30]
• Scott Walker, formergovernor of Wisconsin (2011–2019)^[31]

State legislators

• Adam Jarchow, formerstate assemblyman from the28th district (2015–2019)^[11]
• Gae Magnafici,state assemblywoman from the28th district (2019–present)^[30]
• Romaine Quinn,state assemblyman from the75th district (2015–2021)^[14]
• Rob Stafsholt,state assemblyman from the29th district (2017–2021)^[30]
• Patrick Testin,state senator from the24th district (2017–present)^[32]
• Leah Vukmir,state senator from the5th district (2011–2019) and nominee for U.S. Senate in2018^{[33][non-primary source needed]}
• Shannon Zimmerman,state assemblyman from the30th district (2017–present)^[30]

Individuals

• Luke Hilgemann, Republican strategist^[7]

Organizations

• Americans for Prosperity^[34]
• Club for Growth^[35]

Federal politicians

• Deb Haaland, U.S. representative (NM-1)^{[22][49][non-primary source needed]}

State politicians

• Janet Bewley, state senate assistant minority leader^[22]
• Beth Meyers, state representative^[22]
• Nick Milroy, state representative^[22]
• Patty Schachtner, state senator^[22]

Individuals

• Randy Bryce, activist, ironworker and nominee forWisconsin's 1st congressional district in2018^[22]

Party organizations and officials

• Democratic Party of Wisconsin^[22]

Labor unions

• International Brotherhood of Electrical Workers Local 388^[22]
• United Steelworkers District 2^[22]
• Wisconsin State AFL-CIO^[50]

Organizations

• Citizen Action of Wisconsin^[51]

Executive branch officials

• Mike Pence,vice president of the United States (2017–2021)^{[57][non-primary source needed]}
• Donald Trump,president of the United States (2017–2021)^{[58][non-primary source needed]}

U.S. senators

• Ron Johnson,U.S. senator from Wisconsin (2011–present)^{[59][non-primary source needed]}

U.S. representatives

• Mike Gallagher,U.S. representative fromWisconsin's 7th congressional district (2019–present)^{[60][non-primary source needed]}
• Bryan Steil,U.S. representative fromWisconsin's 1st congressional district (2019–present)^[61]

Statewide officials

• Rebecca Kleefisch, formerlieutenant governor of Wisconsin (2011–2019)^{[62][non-primary source needed]}

Individuals

• James Woods, actor^{[63][non-primary source needed]}

Organizations

• Susan B. Anthony List^{[64][non-primary source needed]}

U.S. senators

• Tammy Baldwin, U.S. senator from Wisconsin^[65]
• Cory Booker, U.S. senator from New Jersey^{[66][non-primary source needed]}
• Kamala Harris, U.S. senator from California^{[67][non-primary source needed]}
• Elizabeth Warren, U.S. senator from Massachusetts^[68]

U.S. Representatives

• Sharice Davids,U.S. representative fromKansas's 3rd congressional district (2019–present)^{[69][non-primary source needed]}
• Ron Kind,U.S. representative fromWisconsin's 3rd congressional district (1997–2023)^{[70][non-primary source needed]}
• Gwen Moore,U.S. representative fromWisconsin's 4th congressional district (2005–present)^{[71][non-primary source needed]}
• Dave Obey,U.S. representative fromWisconsin's 7th congressional district (1969–2011)^{[72][non-primary source needed]}

Statewide officials

• Mandela Barnes,lieutenant governor of Wisconsin (2019–2023)^{[73][non-primary source needed]}

Individuals

• Jon Bauman, actor, singer, game show host and political spokesman^[74]
• Piper Perabo, actress^{[75][non-primary source needed]}
• Bradley Whitford, actor, activist^{[76][non-primary source needed]}
• Ben Wikler, chair of the Wisconsin Democratic Party (2019–present)^{[77][non-primary source needed]}

Labor unions

• International Brotherhood of Electrical Workers Local 242^[78]
• International Brotherhood of Teamsters, Joint Council 39^[79]

Organizations

• EMILY's List^[80]
• League of Conservation Voters Action Fund^[81]
• Planned Parenthood Action Fund^[82]
• Sierra Club^[83]
• Social Security Works PAC^[74]

1. ^Gilbert, Craig; Beck, Molly (August 26, 2019)."GOP Congressman Sean Duffy says he's stepping down due to new baby".USA Today. Milwaukee Journal Sentinel. RetrievedAugust 29, 2019.
2. ^Bauer, Scott (September 23, 2019)."Duffy serves final day in House; Evers sets January election".Reading Eagle.Associated Press. Archived fromthe original on September 23, 2019. RetrievedSeptember 23, 2019.
3. ^"Gov. Tony Evers to move date of Wisconsin's special congressional vote".WTMJ-TV Milwaukee.Associated Press. October 1, 2019. RetrievedOctober 8, 2019.
4. ^"Evers Sets New 7th Congressional District Special Election Date".Wisconsin Public Radio. October 1, 2019. RetrievedOctober 19, 2019.
5. ^Bowman, Bridget (August 26, 2019)."GOP Rep. Sean Duffy resigning on Sept. 23".Roll Call. RetrievedAugust 29, 2019.
6. ^Marley, Patrick (September 10, 2019)."Tom Tiffany aligns himself with Trump as he runs to replace outgoing Congressman Sean Duffy".Milwaukee Journal Sentinel. RetrievedSeptember 10, 2019.
7. ^^abcVetterkind, Riley (September 11, 2019)."Republican Tom Tiffany enters race for northern Wisconsin district".La Crosse Tribune. RetrievedSeptember 11, 2019.
8. ^Schulte, Laura."Michael Opela third Republican to join District 7 race to replace Sean Duffy".Daily Herald Media. RetrievedDecember 5, 2019.
9. ^^ab"Candidate Tracking by Office | 2020 Special Election Representative in Congress District December 7 – 5, 2020"(PDF). Wisconsin Elections Commission. December 3, 2019. Archived fromthe original(PDF) on April 8, 2020. RetrievedDecember 5, 2019.
10. ^"Mosinee Mayor Brent Jacobson Won't Run for 7th Congressional Seat". WSAU. September 19, 2019. RetrievedSeptember 19, 2019.
11. ^^abBeck, Molly; Gilbert, Craig; Marley, Patrick (August 26, 2019)."US Rep. Sean Duffy says he's leaving Congress in September".Milwaukee Journal Sentinel. RetrievedAugust 29, 2019.
12. ^"Petrowski campaign: Statement on decision regarding possible run for Congress – 7th District".Wis Politics. RetrievedSeptember 9, 2019.
13. ^Schulte, Laura (August 26, 2019)."Wisconsin Sen. Jerry Petrowski considers run for Sean Duffy's congressional seat".Wausau Daily Herald. RetrievedAugust 29, 2019.
14. ^^abTerlecki, Courtney (September 11, 2019)."Former WI Gov. Scott Walker endorses Tom Tiffany for 7th Congressional District".WAOW. RetrievedSeptember 13, 2019.
15. ^Schulte, Laura (September 24, 2019)."Army veteran Jason Church challenges Tiffany in GOP race for Sean Duffy seat, Riveron out".Wausau Daily Herald. RetrievedSeptember 25, 2019.
16. ^^abcdBauer, Scott (February 10, 2020)."Wisconsin GOP primary pits war vet against political vet".The Daily Reporter. Madison, WI.Associated Press. Archived fromthe original on May 18, 2022.Church's biggest endorsements come from members of Congress who are fellow veterans — U.S. Sens. Joni Ernst of Iowa and Tom Cotton of Arkansas and Reps. Dan Crenshaw of Texas and Brian Mast of Florida.
17. ^Cotton, Tom (December 4, 2019)."Please join @DanCrenshawTX & me in supporting @JasonChurchWI for Congress! Jason served & sacrificed for our nation. With your help, he will do so again on behalf of the great people of Wisconsin".@TomCottonAR – via Twitter.
18. ^Church, Jason (December 9, 2019)."Today, I received fellow Army veteran and Senator @joniernst's endorsement. Senator Ernst is a terrific example of service and conservative leadership. I look forward to joining her in the fight in Congress to Drain the Swamp and support our military and veterans. #WI07".@JasonChurchWI – via Twitter.
19. ^Crenshaw, Dan (December 4, 2019)."America, meet Jason Church, a veteran who sacrificed for his country and is now looking to serve in a new way: representing WI-07. | Please show him some support so he can join me in the fight in Washington. Follow him at @JasonChurchWI and donate here".@DanCrenshawTX – via Twitter.
20. ^^abcdeSchulte, Laura (February 6, 2020)."7th District endorsements: Charlie Kirk goes to Church, Tiffany nabs U.S. Chamber, Zunker gets Steelworkers".Wausau Daily Herald.
21. ^Church, Jason (January 9, 2020)."Thank you, @AdamKinzinger for endorsing my campaign. Adam is a conservative warrior from WI's neighbor state. We both know that midwesterners value family and hard work most. In Congress, I will stand with Adam to keep our economy and military strong. #WI07pic.twitter.com/VC8HCl9tZp".@JasonChurchWI – via Twitter.
22. ^^abcdefghijkSchulte, Laura (February 7, 2020)."7th District endorsements: Charlie Kirk goes to Church, Tiffany nabs U.S. Chamber, Zunker gets Steelworkers".Wausau Daily Herald.
23. ^Wigderson, James (December 20, 2019)."Duffy Chooses Tiffany in 7th District GOP Primary".RightWisconsin. Archived fromthe original on December 28, 2019. RetrievedDecember 28, 2019.Church has received the endorsement of former Assembly Speaker John Gard (R-Sun Prairie), an endorsement that has proven controversial with conservatives.
24. ^Kirk, Charlie (October 22, 2019)."America needs more public servants and less career politiciansThat's why I'm proud to support @JasonChurchWI—a combat veteran who lost both legs to an IED in AfghanistanHe's ready to stand with President Trump to Keep America GreatCheck him out here:…".@charliekirk11 – via Twitter.
25. ^Herndon, Astead W. (April 7, 2020)."They Turned Out to Vote in Wisconsin During a Health Crisis. Here's Why".The New York Times.Charlotte Rasmussen, the Republican chair of Clark County in central Wisconsin
26. ^"Combat Veterans For Congress | Electing Fiscal Conservatives".combatveteransforcongress.org. Archived fromthe original on September 13, 2020. RetrievedJanuary 9, 2020.
27. ^"Endorsement: Jason Church for Congress".New Politics. December 5, 2019.
28. ^Tom Tiffany [@TomTiffanyWI] (September 18, 2019)."Thank you for the support Gov. Thompson!" (Tweet). RetrievedSeptember 27, 2019 – viaTwitter.
29. ^Wigderson, James (December 20, 2019)."Duffy Chooses Tiffany in 7th District GOP Primary".RightWisconsin. Archived fromthe original on December 28, 2019. RetrievedDecember 28, 2019.
30. ^^abcd"Sheila Harsdorf Endorses Tiffany for Congress".Tiffany for Congress. September 27, 2019. RetrievedSeptember 27, 2019.
31. ^Scott Walker [@ScottWalker] (September 11, 2019).".@TomTiffanyWI is a fighter for northern Wisconsin and for the hard-working taxpayers. I enthusiastically endorse his run for Congress!" (Tweet). RetrievedSeptember 11, 2019 – viaTwitter.
32. ^Poltrock, Heather (October 9, 2019)."Sen. Pat Testin backs Tom Tiffany for Congress".wsaw.com. Fox WSAW. Archived fromthe original on October 28, 2019. RetrievedOctober 28, 2019.
33. ^Vukmir, Leah (November 14, 2019)."I am proud to endorse @TomTiffanyWI for Congress because he has proven he will fight for us — no matter what extremists throw at him. He's the ally @realDonaldTrump needs to help defend the unborn, secure the border, and protect our Constitution. #WI07 #wiright".@LeahVukmir – via Twitter.
34. ^"AFP endorses Tiffany, promises to mobilize grassroots activists in 7th CD race".WISPOLITICS. October 18, 2019. RetrievedOctober 18, 2019.
35. ^"Tom Tiffany (WI-07)".Club for Growth. RetrievedFebruary 29, 2020.
36. ^^ab"Election results: Wisconsin spring primary election".projects.jsonline.com. Journal Sentinel. February 18, 2020.
37. ^^ab"WEC Canvass Reporting System | County by County Report | 2020 Spring Primary"(PDF). Wisconsin Election Commission. Archived fromthe original(PDF) on September 13, 2020. RetrievedMarch 3, 2020.
38. ^^ab"Wausau's Tricia Zunker Aims To Be Wisconsin's First Native American Congresswoman".Wisconsin Public Radio. October 1, 2019. RetrievedOctober 14, 2019.
39. ^Poltrock, Heather."Wausau School Board President to run for Congress".wsaw.com. Archived fromthe original on October 14, 2019. RetrievedOctober 14, 2019.
40. ^"A Democratic contender enters Wisconsin's 7th Congressional District race". WKOW. October 1, 2019. RetrievedOctober 14, 2019.
41. ^"WJFW – Veteran, Spencer Zimmerman, announces campaign to replace Duffy in Congress".wjfw.com. Archived fromthe original on November 9, 2019. RetrievedDecember 5, 2019.
42. ^"Wausau School Board President Enters 7th District Congressional Race".wjjq.com. WJJQ Radio. October 15, 2019.Another politician decided against running in that race yesterday. State Senator Janet Bewley said she will not enter the election and will instead continue to serve the residents of her 25th Senate district.
43. ^Marley, Patrick (October 14, 2019)."Democratic state Sen. @JanetBewley4WI says she won't run for Congress. She praises @TriciaforWI, who announced today she's running for the seat vacated last month by @RepSeanDuffy".@patrickdmarley – via Twitter.
44. ^"Engerbretson Not Running for 7th Congressional Seat". WSAU. RetrievedOctober 9, 2019.
45. ^"Tiffany edges closer to run for Congress, 2 others bow out".CBS58. September 9, 2019.
46. ^Vetterkind, Riley (August 27, 2019)."Congressman Sean Duffy to resign in September, cites family reasons".Wisconsin State Journal. RetrievedAugust 29, 2019.
47. ^"Two Democrats Decide Not to Run for Congress".WDIO-DT. September 30, 2019. Archived fromthe original on September 30, 2019. RetrievedSeptember 30, 2019.
48. ^^abcMentzer, Rob (August 27, 2019)."Parties Eye Possible Nominees In Race To Replace Resigning Rep. Sean Duffy".Wisconsin Public Radio.
49. ^Haaland, Deb (November 14, 2019).".@TriciaforWI will be another strong voice for Native people in Congress — and the first Native American elected to Congress in Wisconsin! Let's do this! #WI07 #BeFierce..."@Deb4CongressNM – via Twitter.
50. ^Bloomingdale, Stephanie (February 11, 2020)."Wisconsin AFL-CIO Endorses Tricia Zunker for 7th Congressional District".Wisconsin State AFL-CIO.
51. ^Brusky, Matthew (February 7, 2020)."Citizen Action Weekly: Friday, February 7th".Citizen Action Wisconsin.
52. ^Wasserman, David (August 26, 2019)."Duffy's Resignation Moves WI-07 from Solid to Likely Republican".The Cook Political Report.
53. ^Askarinam, Leah (August 26, 2019)."Wisconsin 7: Duffy's Seat Remains Solid Republican for Now | News & Analysis | Inside Elections".insideelections.com. Inside Elections with Nathan L. Gonzales.
54. ^"2020 Rating Changes – Sabato's Crystal Ball". RetrievedMay 13, 2020.
55. ^"2020 Election Forecast".Politico. November 19, 2019.
56. ^"2020 House Race Ratings".Daily Kos. RetrievedApril 30, 2020.
57. ^Tiffany, Tom [@TomTiffanyWI] (March 11, 2020)."Please join VP @Mike_Pence and me for a GOTV event in the Wausau area. Be part of our historic victory! Thursday, March 19 11:30 a.m. Stoney Creek Hotel in Rothschild Get your tickets here → https://www.eventbrite.com/e/gotv-event-with-special-guest-vice-president-mike-pence-and-tom-tiffany-tickets-97813062503 …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
58. ^Trump, Donald J. (April 20, 2020)."Tom Tiffany (@TomTiffanyWI) is a Great Advocate for the incredible people of Wisconsin (WI07). We need Tom in Congress to help us Make America Great Again! He will Fight for Small Business, supports our Incredible Farmers, Loves our Military and our Vets..." RetrievedMay 13, 2020.
59. ^Johnson, Ron [@RonJohnsonWI] (February 18, 2020)."Congratulations @TomTiffanyWI! Conservatives in northern Wisconsin will come together to keep #WI07 red" (Tweet) – viaTwitter.
60. ^Gallagher, Mike [@MikeforWI] (February 18, 2020)."@TomTiffanyWI has a proven record of fighting for northern WI & supporting conservative reforms in the state legislature. Voters now have the opportunity to send him to Washington to do the same. I congratulate Tom on winning this primary and look forward to supporting him in May" (Tweet). Archived fromthe original on June 2, 2020 – viaTwitter.
61. ^Bryan Steil [@BryanSteil] (February 19, 2020)."Now, more than ever, we need conservative reinforcements in the U.S. House. I'm thrilled to stand with @TomTiffanyWI after his primary victory. Tom has proven to be a fierce advocate for conservative values" (Tweet). RetrievedFebruary 19, 2020 – viaTwitter.
62. ^Kleefisch, Rebecca [@RebeccaforReal] (February 18, 2020)."@TomTiffanyWI, Thinking of you today and sending encouragement to voters of the 7th Congressional district… This guy will have your back in Washington! Vote today!" (Tweet) – viaTwitter.
63. ^Woods, James [@RealJamesWoods] (May 12, 2020)."Every shot we have to put Nancy Pelosi back to pasture is essential. #TomTiffanyhttps://twitter.com/realdonaldtrump/status/1260185657395339266 …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
64. ^List, Susan B. Anthony [@SBAList] (May 12, 2020)."Today's the day #WI07! Make sure you get out and vote for #prolife candidate @TomTiffanyWI! Not sure where to vote? Find your polling place here: https://myvote.wi.gov/en-us/FindMyPollingPlace …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
65. ^Dubois, Peter (April 16, 2020)."Sen. Tammy Baldwin endorses Tricia Zunker in 7th Congressional race".wjfw.com. WJFW-TV. Archived fromthe original on September 13, 2020. RetrievedApril 19, 2020.
66. ^Booker, Cory [@CoryBooker] (April 29, 2020)."I hope you'll support @TriciaforWI for Congress. She's running in a tough special election in Wisconsin on May 12th against an opponent who's been endorsed by Donald Trump. Let's make sure Tricia flips this seat. Chip in to her campaign today: https://secure.actblue.com/donate/tzcb https://twitter.com/emilyslist/status/1255120659727990785 …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
67. ^Zunker, Tricia (May 4, 2020)."I'm honored to be endorsed by @KamalaHarris and looking forward to working with her to advocate for affordable health care and help for working families after we turn Wisconsin blue on May 12. #WI07pic.twitter.com/VhuRhdJ07K". RetrievedMay 13, 2020.
68. ^Axelrod, Tal (April 22, 2020)."Warren endorses 20 Democratic women for down-ballot races".The Hill.
69. ^Zunker, Tricia (May 7, 2020)."I'm honored to have the support of fellow Ho-Chunk tribal member @sharicedavids. Ho-Chunk means "People of the Big Voice" & together we'll be big voices in Congress for affordable health care, help for our small businesses, and protection of the environment. #WI07pic.twitter.com/0HMsQHl9IO". RetrievedMay 13, 2020.
70. ^Zunker, Tricia (May 3, 2020)."I'm so honored to have the support of @KindforCongress in my special election coming up on May 12 and I'm looking forward to working with him in Congress to lower prescription drug costs and fight for our small businesses.pic.twitter.com/sdneFKi0JC". RetrievedMay 13, 2020.
71. ^Moore, Gwen S. (May 11, 2020).".@Triciaforwi is one of us and I'm with her! She will fight for what our families need: expanding affordable health care, lowering Rx cost drugs, and support small businesses and family farmers. When headed to the polls tomorrow, remember: Tricia is in the fight for us! #wi07pic.twitter.com/DR7ATIt4vo". RetrievedMay 13, 2020.
72. ^Zunker, Tricia (March 17, 2020).""In these challenging times, we need an intelligent and dedicated leader in Congress to represent the people of Wisconsin. Tricia Zunker is that leader. Tricia is not a slave to political ideology," said former Rep. Dave Obey. [1/2] #wi07pic.twitter.com/HZPnHUSmim". RetrievedMay 13, 2020.
73. ^Barnes, Mandela [@TheOtherMandela] (May 4, 2020)."I support @TriciaforWIhttps://twitter.com/schultelaura/status/1257474721026699264 …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
74. ^^abJon "Bowzer" Bauman Announces Social Security Works PAC's Endorsement of Tricia Zunker (Video). United States. May 6, 2020. RetrievedMay 6, 2020 – via YouTube.
75. ^Perabo, Piper [@PiperPerabo] (May 11, 2020)."#Wisconsin ELECTION Tomorrow! #WI07 the biggest in the state, has never been represented by a woman. Let's make herstory. Vote Tricia Zunker for Congress May 12" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
76. ^Zunker, Tricia [@TriciaforWI] (April 30, 2020)."Thank you @BradleyWhitford! We have an incredible opportunity to turn Wisconsin blue! Vote Tricia Zunker for Congress on May 12. #wi07" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
77. ^Wikler, Ben [@benwikler] (April 20, 2020)."Now that Trump lost the in-person Wisconsin Supreme Court race, he's sweating about the Wisconsin Congressional special election on May 12—which the GOP is also ensuring is in-person. He's endorsing the Republican. Chip in to help great Dem Tricia Zunker: https://secure.actblue.com/donate/tricia-website?refcode=website …https://twitter.com/realDonaldTrump/status/1252416049942687747 …" (Tweet). RetrievedMay 13, 2020 – viaTwitter.
78. ^"IBEW 242 | Wisconsin".ibew242.org.
79. ^Bennett, Thomas; Carroll, Bill (May 1, 2020)."Teamsters JC 39 Endorses Zunker In U.S. House Special Election". Teamsters Joint Council 39. PR Newswire.
80. ^Schriock, Stephanie (April 28, 2020)."EMILY's List Endorses Tricia Zunker in Wisconsin's 7th Congressional District".emilyslist.org. EMILY's List.
81. ^Sittenfeld, Tiernan; Schumann, Kerry (April 8, 2020)."LCV Action Fund Endorses Tricia Zunker for Congress".League of Conservation Voters.
82. ^"2020 Endorsements".plannedparenthoodaction.org. Planned Parenthood Action Fund. Archived fromthe original on April 12, 2020. RetrievedMay 1, 2020.
83. ^Ward, Elizabeth; Blouin, Dave (March 31, 2020)."Sierra Club Endorses Tricia Zunker for Congress".Sierra Club.