A tape recording of Donald Trump making disparaging remarks about women has sparked howls of condemnation from Republican colleagues. Several have said they can no longer back him.
It’s not the first time. Republicans have been deserting him for months over various scandals.
So who is on the “Never Trump” list and who’s still on Mr Trump’s side?
Republican senators not voting for Mr Trump
Kelly Ayotte, New Hampshire
Susan Collins, Maine
Mike Crapo, Idaho
Deb Fischer, Nebraska
Jeff Flake, Arizona
Cory Gardner, Colorado
Lindsey Graham, S Carolina
Dean Heller, Nevada
Mark Kirk, Illinois
John McCain, Arizona
Lisa Murkowski, Alaska
Rob Portman, Ohio
Martha Roby, Alabama
Ben Sasse, Nebraska
Dan Sullivan, Alaska
John Thune, S Dakota
Republican Congressmen and Congresswomen not voting for Mr Trump
Bradley Byrne, Alabama
Jason Chaffetz, Utah
Barbara Comstock, Virginia
Mike Coffman, Colorado
Rodney Davis, Illinois
Jeff Fortenberry, Nebraska
Scott Garrett, New Jersey
Cresent Hardy, Nevada
Joe Heck, Nevada
Mike Lee, Utah
Frank LoBiondo, New Jersey
Erik Paulsen, Minnesota
Tom Rooney, Florida
Ileana Ros-Lehtinen, Florida
Chris Stewart, Utah
Fred Upton, Michigan
Ann Wagner, Missouri
Other Republicans who will not vote for him
Robert Bentley, Alabama governor
Jeb Bush, former Florida governor and candidate for the 2016 nomination
William Cohen, former secretary of defence
Dennis Daugaard, South Dakota governor
Carly Fiorina, former candidate for the 2016 nomination
Michael Hayden, former CIA director, former NSA director
Gary Herbert, Utah governor
Jon Huntsman, former Utah governor
John Kasich, Ohio governor, 2016 presidential candidate
George E Pataki, former New York governor
Tim Pawlenty, former Minnesota governor
Condoleezza Rice, former secretary of state
Tom Ridge, former Pennsylvania governor; former Homeland Security secretary
Mitt Romney, former Massachusetts governor, 2012 presidential nominee
Brian Sandoval, Nevada governor
Arnold Schwarzenegger, former California governor
Republicans voting for Mrs Clinton
Image copyright Getty Images
Image caption From left: Hank Paulson, Meg Whitman, Richard Hanna and Richard Armitage
Richard Armitage, former deputy secretary of state
Ex-President George HW Bush
Richard Hanna, New York congressman
Hank Paulson, former treasury secretary
Brent Scowcroft, former national security adviser
Chris Shays, former Connecticut congressman
Meg Whitman, prominent Republican donor; CEO of Hewlett Packard
Senior Republicans still in Trump’s corner
Image copyright Reuters
Image caption House Speaker Paul Ryan is the most senior elected Republican in the US
Ben Carson, retired neurosurgeon, former candidate for the 2016 nomination
Chris Christie, New Jersey governor, former candidate for the 2016 nomination
Ted Cruz, Texas senator, former candidate for the 2016 nomination
Newt Gingrich, former House speaker
Rudy Giuliani, former New York mayor
Mitch McConnell, Senate majority leader
Paul Ryan, speaker of the House of Representatives
Marco Rubio, Florida senator, former candidate for the 2016 nomination
Scott Walker, Wisconsin governor, former candidate for the 2016 nomination
