List of Republicans who oppose the Donald Trump 2024 presidential campaign

This is a list of Republicans and conservatives who have openly expressed opposition to former President Donald Trump's nomination in Trump's 2024 campaign for President of the United States.

U.S. president

 * George W. Bush, President of the United States (2001–2009), Governor of Texas (1995–2000)

U.S. vice presidents



 * Dick Cheney, Vice President of the United States (2001–2009), United States Secretary of Defense (1989–1993), U.S. Representative from Wyoming's at-large congressional district (1979–1989), White House Chief of Staff (1975–1977), White House Deputy Chief of Staff (1974–1975)
 * Mike Pence, Vice President of the United States (2017–2021) under Trump, Governor of Indiana (2013–2017), U.S. Representative from IN-06 (2003–2013), U.S. Representative from IN-02 (2001–2003), (former candidate for president)

Cabinet-level officials



 * Dan Coats, Director of National Intelligence (2017–2019), U.S. Senator from Indiana (1989–1999; 2011–2017) (endorsed Mike Pence)
 * William Cohen, United States Secretary of Defense (1997–2001), U.S. Senator from Maine (1979–1997)
 * John Danforth, United States Ambassador to the United Nations (2004–2005), U.S. Senator from Missouri (1976–1995)
 * Mark Esper, United States Secretary of Defense (2019–2020), United States Secretary of the Army (2017–2019)
 * Chuck Hagel, United States Secretary of Defense (2013–2015), co-chair of President's Intelligence Advisory Board (2009–2013), U.S. Senator from Nebraska (1997–2009)
 * John F. Kelly, White House Chief of Staff (2017–2019), United States Secretary of Homeland Security (2017)
 * John Lehman, United States Secretary of the Navy (1981–1987)
 * Mick Mulvaney, acting White House Chief of Staff (2019–2020), Director of the Office of Management and Budget (2017–2020), acting Director of the Consumer Financial Protection Bureau (2017–2018), U.S. Representative from sc's 5th congressional district (2011–2017)
 * Richard V. Spencer, United States Secretary of the Navy (2017–2019)

Other executive branch officials



 * John Bolton, U.S. National Security Advisor (2018–2019), Ambassador to the United Nations (2005–2006)
 * Ty Cobb, White House Special Counsel (2017–2018), Assistant U.S. Attorney for the District of Maryland in (1981–1986)
 * Ashley Davis, White House Deputy Director of Management and Administration (2001–2003) (endorsed Nikki Haley)
 * Ronald Gidwitz, Acting U.S. Ambassador to the European Union (2020–2021), U.S. Ambassador to Belgium (2018–2021), chair of the Illinois State Board of Education (1999–2003) (endorsed Chris Christie)
 * Alyssa Farah Griffin, White House Director of Strategic Communications (2020), Press Secretary of the U.S. Department of Defense (2019–2020), Press Secretary to the Vice President (2017–2019) and co-host of The View (endorsed Nikki Haley)
 * Stephanie Grisham, White House Communications Director and White House Press Secretary (2019–2020)
 * Cassidy Hutchinson, executive assistant to the White House Chief of Staff (2020–2021)
 * Bobbie Kilberg, Director of the Office of Public Liaison (1989–1992) (endorsed Chris Christie)
 * Mary Kramer, U.S. Ambassador to Barbados (2004–2006) (endorsed Nikki Haley)
 * Frank Lavin, U.S. Ambassador to Singapore (2001–2005), White House Director of Political Affairs (1987–1989) (endorsed Nikki Haley)
 * Sarah Matthews, Deputy White House Press Secretary (2020–2021) (switched endorsement to Biden after Haley withdrew)
 * H. R. McMaster, U.S. National Security Advisor (2017–2018)
 * Harriet Miers, White House Counsel (2005–2007), White House Deputy Chief of Staff (2003–2005), and White House Staff Secretary (2001–2003)
 * Omarosa Manigault Newman, Communications Director of the Office of Public Liaison (2017–2018), reality TV star
 * Elizabeth Neumann, DHS Assistant Secretary for Counterterrorism and Threat Prevention (2018–2020), DHS Deputy Chief of Staff (2017–2018), Homeland Security Council (2003–2006)
 * Karen Pence, Second Lady of the United States (2017–2021), First Lady of Indiana (2013–2017) (endorsed Mike Pence)
 * Jeanne Phillips, United States Ambassador to the OECD (2001–2002)
 * Anthony Scaramucci, White House Communications Director (2017) (previously endorsed Chris Christie, Endorsed Joe Biden)
 * Marc Short, Chief of Staff to the Vice President (2019–2021) (endorsed Mike Pence)
 * Miles Taylor, Chief of Staff of the United States Department of Homeland Security (2019)
 * Jay Town, United States Attorney for the Northern District of Alabama (2017–2020)
 * Olivia Troye, Homeland Security and Counterterrorism advisor and lead COVID-19 advisor to the Vice President (2018–2020)

Current



 * Bill Cassidy, U.S. Senator from Louisiana (2015–present), U.S. Representative from LA-06 (2009–2015)
 * Susan Collins, U.S. Senator from Maine (1997–present) (endorsed Nikki Haley)
 * Jerry Moran, U.S. Senator from Kansas (2011–present), U.S. Representative from KS-01 (1997–2011)
 * Lisa Murkowski, U.S. Senator from Alaska (2002–present) (endorsed Nikki Haley)
 * Mitt Romney, U.S. Senator from Utah (2019–present), 2012 nominee for president, Chair of the Republican Governors Association (2005–2006), Governor of Massachusetts (2003–2007)
 * Todd Young, U.S. Senator from Indiana (2017–present), U.S. Representative from IN-09 (2011–2017)

Former



 * Rudy Boschwitz, U.S. Senator from Minnesota (1978–1991), United States Ambassador to the United Nations Commission on Human Rights (2005–2006) (endorsed Nikki Haley)
 * Jeffrey Chiesa, U.S. Senator from New Jersey (2013), Attorney General of New Jersey (2012–2013) (endorsed Chris Christie)
 * Bob Corker, U.S. Senator from Tennessee (2007–2019)
 * Jeff Flake, Ambassador to Turkey (2022–present), U.S. Senator from Arizona (2013–2019), U.S. Representative from AZ (2001–2013)
 * Cory Gardner, U.S. Senator from Colorado (2015–2021), and U.S. Representative from CO-04 (2011–2015) (endorsed Tim Scott)
 * Judd Gregg, U.S. Senator from New Hampshire (1993–2011), Governor of New Hampshire (1989–1993) (endorsed Nikki Haley)
 * Gordon J. Humphrey, U.S. Senator from New Hampshire (1979–1990) (endorsed Nikki Haley)
 * George LeMieux, U.S. Senator from Florida (2009–2011) (endorsed Ron DeSantis)
 * Rob Portman, U.S. Senator from Ohio (2011–2023), Director of the Office of Management and Budget (2006–2007), United States Trade Representative (2005–2006), U.S. Representative from OH-02 (1993–2005), White House Director of Legislative Affairs (1989–1991) (endorsed Nikki Haley)
 * Alan Simpson, U.S. Senator from Wyoming (1979–1997)
 * John E. Sununu, U.S. Senator from New Hampshire (2003–2009), U.S. Representative from NH-01 (1997–2003) (endorsed Nikki Haley)
 * Pat Toomey, U.S. Senator from Pennsylvania (2011–2023), U.S. Representative from PA-15 (1999–2005)

Current

 * David Joyce, U.S. Representative from OH-14 (2013–present)
 * Thomas Massie, U.S. Representative from KY-04 (2012–present) (endorsed Ron DeSantis)
 * Greg Pence, U.S. Representative from IN-06 (2019–present) (endorsed his brother Mike Pence)
 * David Valadao, U.S. Representative from CA-22 (2023–present), U.S. Representative from CA-21 (2013–2019, 2021–2023)

Former



 * Gresham Barrett, U.S. Representative from SC-03 (2003–2011) (endorsed Nikki Haley)
 * John Boehner, Speaker of the United States House of Representatives (2011–2015), U.S. Representative from OH-08 (1991–2015)
 * Mo Brooks, U.S. Representative from AL-05 (2011–2023), Member of the Madison County Commission (1996–2011)
 * Susan Brooks, U.S. Representative from IN-05 (2013–2021) (endorsed Chris Christie)
 * Liz Cheney, U.S. Representative from WY-AL (2017–2023), Chair of the House Republican Conference (2019–2021)
 * Barbara Comstock, U.S. Representative from VA-10 (2015–2019) (endorsed Christie and Hutchinson)
 * Mike Gallagher, U.S. Representative from WI-08 (2017–2024)
 * Anthony Gonzalez, U.S. Representative from OH-16 (2019–2023)
 * Will Hurd, U.S. Representative from TX-23 (2015–2021) (former candidate for president, endorsed Haley)
 * John Katko, U.S. Representative from NY-24 (2015–2023)
 * Adam Kinzinger, U.S. Representative from IL-16 (2013–2023), U.S. Representative from IL-11 (2011–2013) (endorsed Joe Biden)
 * Mia Love, U.S. Representative from UT-04 (2015–2019)
 * Tom Rice, U.S. Representative from SC-07 (2013–2023)
 * Paul Ryan, Speaker of the United States House of Representatives (2015–2019), U.S. Representative from WI-01 (1999–2019), 2012 nominee for Vice President (endorsed Nikki Haley)
 * Joe Scarborough, U.S. Representative from FL-01 (1995–2001), host of Morning Joe (independent since 2017)
 * Fred Upton, U.S. Representative from MI-06 (1993–2023), U.S. Representative from MI-04 (1987–1993)
 * Joe Walsh, U.S. Representative from Il-08 (2011–2013), candidate for president in 2020

Current



 * Eric Holcomb, Governor of Indiana (2017–present), Lieutenant Governor of Indiana (2016–2017) (endorsed Mike Pence)
 * Phil Scott, Governor of Vermont (2017–present), Lieutenant Governor of Vermont (2011–2017) (endorsed Nikki Haley)

Former



 * Charlie Baker, Governor of Massachusetts (2015–2023) and President of NCAA (2023–present)
 * Jeb Bush, Governor of Florida (1999–2007), candidate for president in 2016
 * Chris Christie, Governor of New Jersey (2010–2018), U.S. Attorney for the District of New Jersey (2002–2008) (former candidate for president)
 * Bill Haslam, Governor of Tennessee (2011–2019), chair of the Republican Governors Association (2017–2018) (endorsed Tim Scott)
 * Larry Hogan, Governor of Maryland (2015–2023), Chair of the National Governors Association (2019–2020) (endorsed Nikki Haley)
 * Asa Hutchinson, Governor of Arkansas (2015–2023), Administrator of the Drug Enforcement Administration (2001–2003), U.S. Representative from AR-03 (1997–2001) (former candidate for president) (endorsed Nikki Haley)
 * John Kasich, Governor of Ohio (2011–2019), 2000 and 2016 candidate for president, Chair of the House Budget Committee (1995–2001), U.S. Representative from OH-12 (1983–2001)
 * Pat McCrory, Governor of North Carolina (2013–2017)
 * James G. Martin, Governor of North Carolina (1985–1993)
 * George Pataki, Governor of New York (1995–2006), candidate for president in 2016
 * Marc Racicot, Governor of Montana (1993–2001), chair of the RNC (2001–2003)
 * Bruce Rauner, Governor of Illinois (2015–2019) (endorsed Nikki Haley)
 * Mark Sanford, Governor of South Carolina (2003–2011), U.S. Representative from SC-01 (1995–2001 and 2013–2019), Republican candidate for U.S. President in 2020
 * Arnold Schwarzenegger, Governor of California (2003–2011), actor
 * Bill Weld, Governor of Massachusetts (1991–1997), candidate for president in 2020
 * Christine Todd Whitman, Governor of New Jersey (1994–2001), Administrator of the Environmental Protection Agency (2001–2003)

Current

 * John Dougall, Auditor of Utah (2013–present), Utah State Representative from District 27 (2003–2013) (endorsed Ron DeSantis)
 * Jeanette Nuñez, Lieutenant Governor of Florida (2019–present) (endorsed Ron DeSantis)
 * Winsome Sears, Lieutenant Governor of Virginia (2022–present)
 * Roby Smith, Treasurer of Iowa (2023–present) (endorsed Vivek Ramaswamy)

Former

 * Geoff Duncan, Lieutenant Governor of Georgia (2019–2023), Member of the Georgia House of Representatives (2013–2017) (endorsed Joe Biden)
 * Adam Laxalt, Attorney General of Nevada (2015–2019), 2022 nominee for U.S. Senator from Nevada and 2018 nominee for Governor of Nevada (endorsed Ron DeSantis)
 * Corey Stapleton, 2024 candidate for president, Secretary of State of Montana (2017–2021)
 * Michael Steele, Lieutenant Governor of Maryland (2003–2007), Chair of the RNC (2009–2011), co-host of MSNBC's The Weekend (endorsed Joe Biden)
 * Cate Zeuske, Secretary of the Wisconsin Department of Revenue (1996–2001), Treasurer of Wisconsin (1991–1995), Deputy Secretary of the Wisconsin Department of Administration (2015–2018), Wisconsin State Assemblywoman from District 4 (1985–1991) and District 54 (1983–1985) (endorsed Ron DeSantis)

State legislators

 * Becky Edwards, Utah state representative from the 20th district (2009–2018)

Current

 * Manny Díaz Jr., Education Commissioner of Florida (2022–present), Florida State Senator from District 36 (2018–2022), Florida State Representative from District 103 (2012–2018) (endorsed Ron DeSantis)
 * Stephanie Kopelousos, Secretary of Transportation of Florida (2007–2011), Manager of Clay County, FL (2011–2018) (endorsed Ron DeSantis)
 * Joseph Ladapo, Surgeon General of Florida (2021–present) (endorsed Ron DeSantis)
 * Daniel Rickenmann, Mayor of Columbia, SC (2022–present) (endorsed Tim Scott)

Former

 * Mary Pat Christie, First Lady of New Jersey (2010–2018) (endorsed Chris Christie)
 * Casey DeSantis, First Lady of Florida (2019–present) (endorsed Ron DeSantis)
 * Michael Haley, First Gentleman of South Carolina (2011–2017), officer in the South Carolina Army National Guard (endorsed Nikki Haley)
 * Steve Laffey, 2024 candidate for president, Mayor of Cranston, RI (2003–2007)

Federal

 * J. Michael Luttig, Judge of the United States Court of Appeals for the Fourth Circuit (1991–2006), United States Assistant Attorney General for the Office of Legal Counsel (1990–1991)

Current

 * Bill Palatucci, Republican National Committeeman from New Jersey (2010–present) (endorsed Chris Christie)

Former

 * Katon Dawson, South Carolina Republican Party Chair (2002–2009) (endorsed Nikki Haley)
 * Jennifer Horn, New Hampshire Republican Party Chair (2013–2017), co-founder of The Lincoln Project (endorsed Joe Biden)
 * Jennifer Nassour, Massachusetts Republican Party Chair (2009–2011) (endorsed Nikki Haley)
 * Chip Saltsman, Tennessee Republican Party Chair (1999–2001) (endorsed Mike Pence)
 * Amy Tarkanian, Nevada Republican Party Chair (2011–2012) (endorsed Nikki Haley)

Other public figures



 * Kathy Barnette, candidate for Senator from Pennsylvania in 2022, and Republican nominee for U.S. Representative from PA-04 in 2020 (endorsed Vivek Ramaswamy)
 * John Anthony Castro, perennial candidate (candidate for president)
 * Ann Coulter, political commentator
 * S. E. Cupp, political commentator
 * Jenna Ellis, lawyer and alleged racketeering co-conspirator
 * Carly Fiorina, CEO of Hewlett-Packard (1999–2005) and candidate for president in 2016
 * David Frum, political commentator and speech writer
 * Robert Kagan, former Republican, former U.S. State Department official, Senior Fellow at The Brookings Institution, contributor to The Washington Post
 * Sarah Longwell, political strategist
 * Meghan McCain, political commentator, daughter of 2008 nominee for President John McCain (endorsed Nikki Haley)
 * Rupert Murdoch, businessman and owner of Fox News
 * Ana Navarro, political commentator
 * Ramesh Ponnuru, political commentator
 * Harry E. Sloan, Former chairman of Metro-Goldwyn-Mayer and SBS Broadcasting (Endorsed Joe Biden)
 * Eric Tanenblatt, former Chief of Staff to Sonny Perdue

Organizations

 * 43 Alumni for America
 * Americans for Prosperity (endorsed Nikki Haley)
 * The Bulwark
 * National Review
 * New York Post
 * Republican Accountability Project (endorsed Joe Biden)
 * Republicans for the Rule of Law (endorsed Joe Biden)
 * The Lincoln Project (endorsed Joe Biden)