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) (endorsed Kamala Harris)[13]
Ray LaHood, United States Secretary of Transportation (2009–2013), U.S. Representative from IL-18 (1995–2009), member of the Illinois House of Representatives from the 72nd district (1982–1983) (endorsed Kamala Harris)[15]
Robert D. Blackwill, United States Ambassador to India (2001–2003) (endorsed Kamala Harris)[16]
Stephanie Grisham, White House Communications Director and White House Press Secretary (2019–2020) (endorsed Kamala Harris)[22][15]
Michael E. Guest, United States Ambassador to Romania (2001–2004) (endorsed Kamala Harris)[16]
Rosario Marin, U.S. Treasurer (2001–2003), Mayor of Huntington Park, California (1999–2000), Member of the Huntington Park, California City Council (1994–2001) (endorsed Kamala Harris)[28]
John McKay, U.S. Attorney for the Western District of Washington (2001–2007) (endorsed Kamala Harris)
Anthony Scaramucci, White House Communications Director (2017) (endorsed Kamala Harris)[36]
Olivia Troye, Homeland Security and Counterterrorism advisor and lead COVID-19 advisor to the Vice President (2018–2020) (endorsed Kamala Harris)[41][15]
Rod Chandler, WA-08 (1983–1993), member of the Washington House of Representatives from the 45th district (1975–1983) (endorsed Kamala Harris)[15]
Tom Coleman, MN-06 (1976–1993), member of the Minnesota House of Representatives from the 21st district (1973–1976) (endorsed Kamala Harris)[15]
Barbara Comstock, U.S. Representative from VA-10 (2015–2019) (endorsed Kamala Harris)[70][71]
Wayne Gilchrest, MD-01 (1991–2009) (endorsed Kamala Harris)[15]
Jim Greenwood, PA-08 (1993–2005), member of the Pennsylvania House of Representatives from the 143rd district (1981–1986), member of the Pennsylvania Senate from the 10th district (1987–1993) (endorsed Kamala Harris)[15]
Adam Kinzinger, U.S. Representative from IL-16 (2013–2023), U.S. Representative from IL-11 (2011–2013) (endorsed Kamala Harris)[79][30]
John LeBoutillier, NY-06 (1981–1983) (endorsed Kamala Harris)[15]
Susan Molinari, NY-13 (1993-1997), NY-14 (1991–1993), Vice Chair of the House Republican Conference (1995–1997), member of the New York City Council from the 1st district (1986–1990) (endorsed Kamala Harris)[15]
Jack Quinn, NY-30 (1993–2005) (endorsed Kamala Harris)[15]
Peter Smith, VT-AL (1989–1991), Lt. Governor of Vermont (1983–1987) (endorsed Kamala Harris)[15]
Alan Steelman, TX-05 (1973–1977) (endorsed Kamala Harris)[15]
David Trott, MI-11 (2015–2019) (endorsed Kamala Harris)[15]
Joe Walsh, U.S. Representative from Il-08 (2011–2013), candidate for president in 2020 (endorsed Kamala Harris)[87][88][89]
David Emery, U.S. Representative from Maine (1975-1983) (endorsed Kamala Harris)[90]
Jim Edgar, Governor of Illinois (1991–1999) (endorsed Kamala Harris)[98]
Bill Weld, Governor of Massachusetts (1991–1997), candidate for president in 2020 (endorsed Kamala Harris)[112]
Christine Todd Whitman, Governor of New Jersey (1994–2001), Administrator of the Environmental Protection Agency (2001–2003) (Forward Since 2022, endorsed Kamala Harris) [113]
Geoff Duncan, Lieutenant Governor of Georgia (2019–2023), Member of the Georgia House of Representatives (2013–2017)[117] (endorsed Kamala Harris)[118][119]
Bob Orr, former associate justice of the North Carolina Supreme Court (1995–2004) (endorsed Kamala Harris)[121]
Michael Steele, Lieutenant Governor of Maryland (2003–2007), Chair of the RNC (2009–2011), co-host of MSNBC’s The Weekend[123] (endorsed Kamala Harris)[124]
Not going to do the rest, but I reckon that it might be somewhere in there, as that has a lot of high-profile Republicans who have endorsed Harris.