Actress Susan Sarandon, a Bernie Sanders supporter, says she won't necessarily vote for Hillary Clinton if Sanders doesn't win the Democratic nomination.
"I think a lot of people are: 'Sorry, I just can't bring myself to do that,'" Sarandon said on "All In With Chris Hayes."
"How about you, personally?" Hayes asked.
"I don't know. I'm going to see what happens," Sarandon replied.
"Really?" Hayes asked.
"Really," Sarandon said.
And she's not the only one — a lot of people agree with going Bernie or bust.
A Wall Street Journal/NBC poll earlier this month found 33 percent of Sanders supporters wouldn't vote for Clinton.
And about 66,000 people have signed an online "Bernie or Bust" pledge.
But if #BernieorBust goes bust, then Sanders supporters may still join the #NeverTrump movement.
A USC Dornsife/Los Angeles Times poll found close to 8 in 10 Sanders supporters said they'd vote for Clinton in a race against Trump.