A number of prominent Republicans are vowing to never back Donald TrumpDonald TrumpNYT: Rep. Perry played role in alleged Trump plan to oust acting AG Arizona GOP censures top state Republicans McCain, Flake and Ducey Biden and UK prime minister discuss NATO, multilateralism during call MORE even as he closes in on the GOP presidential nomination.
The "Never Trump" ranks include lawmakers, party operatives, pundits and GOP donors — and the movement even sparked a popular hashtag on social media.
They are convinced Trump as standard-bearer would lead the GOP to a devastating defeat in November, costing the party the Senate and potentially the House.
But there are also growing signs many in the GOP establishment are warming to the presumptive nominee. Trump's been endorsed by 14 lawmakers, with others regularly attending Capitol Hill meetings with his staff.
Republican National Committee (RNC) Chairman Reince Priebus has criticized the Never Trump movement as well. "It is essential to victory in November that we all support our candidate," Priebus said at the RNC's spring meeting.
Here's a list of prominent Republicans who won't vote for Trump.
Last updated on Aug. 3 at 10:30 a.m.
Rep. Justin AmashJustin AmashRepublicans eye primaries in impeachment vote Michigan GOP lawmaker says he's 'strongly considering' impeachment Newly sworn in Republican House member after Capitol riot: 'I regret not bringing my gun to D.C.' MORE (Mich.)
Gov. Charlie Baker (Mass.)
Brian Bartlett, former Mitt Romney aide and GOP communications strategist
Glenn Beck, radio host
Michael Berry, radio host
Max Boot, former foreign policy adviser to Sen. Marco RubioMarco Antonio RubioSunday shows preview: All eyes on Biden administration to tackle coronavirus Rubio: Biden 'talking like a centrist' but governing 'from the radical left' The Hill's Morning Report - Biden's crisis agenda hits headwinds MORE (R-Fla.)
Brent Bozell, conservative activist
Former Gov. Jeb Bush (Fla.)
Bruce Carroll, creator GayPatriot.org
Jay Caruso, RedState
Mona Charen, senior fellow at Ethics and Public Policy Center
Linda Chavez, columnist
Dean Clancy, former FreedomWorks vice president
Eliot Cohen, former George W. Bush official
Former Sen. Norm Coleman (Minn.)
Charles C. W. Cooke, writer for National Review
Doug Coon, Stay Right podcast
Rory Cooper, GOP strategist, managing director Purple Strategies
Jim Cunneen, former Calif. assemblyman
Rep. Carlos Curbelo (Fla.)
Steve Deace, radio host
Rep. Bob Dold (Ill.)
Ross Douthat, New York Times columnist
Erick Erickson, writer
Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeArizona GOP censures top state Republicans McCain, Flake and Ducey Budowsky: Democracy won, Trump lost, President Biden inaugurated Biden's inauguration marked by conflict of hope and fear MORE (Ariz.)
Mindy Finn, president, Empowered Women
Daniel Foster, contributing editor National Review Online
David French, writer at National Review
Jon Gabriel, editor-in-chief, Ricochet.com
Sen. Lindsey GrahamLindsey Olin GrahamTrump selects South Carolina lawyer for impeachment trial Democrats formally elect Harrison as new DNC chair McConnell proposes postponing impeachment trial until February MORE (S.C.)
Michael Graham, radio host
Jonah Goldberg, writer
Alan Goldsmith, former staffer, House Committee on Foreign Affairs.
Stephen Gutowski, writer Washington Free Beacon
Rep. Richard Hanna (N.Y.)
Jamie Brown Hantman, former special assistant for legislative affairs for President George W. Bush
Stephen Hayes, senior writer at The Weekly Standard
Doug Heye, former RNC communications director
Quin Hillyer, contributing editor at National Review Online; senior editor at the American Spectator
Gov. Larry Hogan (Md.)
Ben Howe, RedState writer
Former Rep. Bob Inglis (S.C.)
Cheri Jacobus, GOP consultant and former Hill columnist
Robert Kagan, former Reagan official
Randy Kendrick, GOP donor
Matt Kibbe, former FreedomWorks CEO
Rep. Adam Kinzinger (R-Ill.)
Sen. Mark KirkMark Steven KirkSenate majority battle snags Biden Cabinet hopefuls The Hill's Morning Report - Sponsored by Facebook - Senate makes SCOTUS nominee Barrett a proxy for divisive 2020 Senate Republicans scramble to put Trump at arm's length MORE (R-Ill.)
Philip Klein, managing editor at the Washington Examiner
Bill Kristol, The Weekly Standard editor
Frank Lavin, former Reagan aide
Mark Levin, radio host
Justin LoFranco, former Scott Walker aide
Kevin Madden, former Mitt Romney aide
Bethany Mandel, senior contributor at The Federalist
Tucker Martin, former Gov. Bob McDonnell's (R-Va.) communications director
Former RNC Chairman Mel Martínez (Fla.)
Liz Mair, GOP strategist
Lachlan Markey, writer for the Free Beacon
David McIntosh, Club for Growth president
Dan McLaughlin, editor at RedState.com
Ken Mehlman, former RNC chairman
Tim Miller, Our Principles PAC
Joyce Mulliken, former Washington state senator
Ted Newton, political consultant & former Mitt Romney aide
James Nuzzo, former White House aide
Katie Packer, chairwoman of Our Principles PAC
Former Gov. George Pataki (N.Y.)
Former Rep. Ron Paul (Texas)
Katie Pavlich, Townhall editor and Hill columnist
Art Pope, GOP donor
Brittany Pounders, conservative writer
Tomás Regalado, Mayor of Miami
Rep. Reid RibbleReid James RibbleFormer Sen. Tom Coburn dies at 72 Ex-GOP lawmakers side with NY in Supreme Court case over Trump tax returns Former GOP lawmakers, officials ask court to enforce House subpoena on McGahn MORE (Wis.)
Marlene Ricketts, GOP donor
Former Gov. Tom Ridge (Pa.)
Rep. Scott RigellScott RigellSpanberger's GOP challenger raises over .8 million in third quarter Ex-Rep. Scott Taylor to seek old Virginia seat GOP rushes to embrace Trump MORE (Va.)
Mitt Romney, 2012 GOP presidential nominee
Rep. Ileana Ros-Lehtinen (Fla.)
Paul Rosenzweig, former deputy assistant secretary, Department of Homeland Security
Jennifer Rubin, Washington Post conservative blogger
Patrick Ruffini, partner, Echelon Insights
Sarah Rumpf, former BreitBart contributor
Mark Salter, writer and former aide to John McCainJohn Sidney McCainArizona GOP censures top state Republicans McCain, Flake and Ducey Whoopi Goldberg wears 'my vice president' shirt day after inauguration Budowsky: Democracy won, Trump lost, President Biden inaugurated MORE
Rep. Mark Sanford (S.C.)
Sen. Ben Sasse (Neb.)
Elliott Schwartz, Our Principles PAC
Gabriel Schoenfeld, senior fellow, Hudson Institute
Tara Setmayer, CNN analyst and former GOP staffer
Ben Shapiro, editor-in-chief The Daily Wire
Evan Siegfried, GOP strategist and commentator
Ben Stein, actor and political commentator
Brendan Steinhauser, GOP consultant
Stuart Stevens, former Romney strategist
Paul Singer, GOP donor
Erik Soderstrom, former field director for Carly Fiorina
Charlie Sykes, radio host
Brad Thor, writer
Michael R. Treiser, former Mitt Romney aide
Daniel P. Vajdich, former national security adviser to Ted CruzRafael (Ted) Edward CruzBiden leans on Obama-era appointees on climate Ethics complaint filed against Biggs, Cawthorn and Gosar over Capitol riot Hawley, Cruz see approval ratings dip in wake of Capitol riot: poll MORE
Connor Walsh, former digital director for former Rep. Eric CantorEric Ivan CantorBiden faces tall order in uniting polarized nation Can the GOP break its addiction to show biz? Leaving on a high note: Outgoing NRCC head looks to build on 2020 MORE (R-Va.), founder Build Digital
Former Rep. J.C. Watts (Okla.)
Peter Wehner, New York Times contributor
Former Gov. Christine Todd Whitman (N.J.)
Meg Whitman, president and CEO of Hewlett-Packard
George Will, writer
Rick Wilson, Republican strategist
Nathan Wurtzel, Make America Awesome super-PAC
Bill Yarbrough, chairman of the Republican Liberty Caucus of Ohio
Dave Yost, Ohio auditor of state
An earlier version incorrectly included Dana Loesch.
Please send updates to mmali@thehill.com.