Back in 2012, Romney sought the endorsement of a man whose major claim to political fame was stoking racist conspiracy theories about President Obama.
McCain also points finger at "Mr. Trump’s uninformed and indeed dangerous statements on national security issues."
Romney will cite Trump's refusal to release his tax returns and his initial reluctance to disavow an endorsement from a former leader of the Ku Klux Klan.
Rubio's lays out problem for Trump: The Republican Party will keep on fighting him all the way through this primary season.
Moderators say they don't plan to mention Trump's comments about Megyn Kelly, his complaints of unfair treatment, or his absence from Fox's January debate.
The claim is part of a lawsuit that accuses Trump and the now-defunct for-profit venture of misleading thousands of people, who paid up to $35,000 each.
Both Ryan and McConnell said they did not want to weigh in further on the presidential race, something they have declined to do for months.
The 'Morning Joe' host hit back at widespread accusations that he and his show had gone easy and helped to facilitate the rise of a political demagogue.
Photographer who was trying to document removal of protesters from rally was grabbed by the neck by Secret Service agent, shoved to the ground.
We now officially have an ad from a Democratic Senate candidate, who is latching onto the rise of Donald Trump in order to slam Republicans in a crucial down-ballot race.
Cornyn: "We can't have a nominee be an albatross around the down-ballot races."
"Time" magazine photographer said he was choked and pushed to ground by U.S. Secret Service agents, as Black Lives Matter protesters crashed Trump rally.