Donald Trump isn't shy about labeling people losers — belittling everyone from his fellow GOP presidential candidates to Rosie O'Donnell and Arizona Sen. John McCain.
But if he doesn't capture his party's nomination, the real estate mogul said he's willing to be branded the ultimate insult himself.
"If you lose the Republican nomination, are you a loser?" Barbara Walters asked him during her annual "10 Most Fascinating People" special on Thursday night.