Bernie Sanders' campaign is on the line in the June 7 California primary. | Getty Sanders hits Trump for backing out of debate

Bernie Sanders criticized Donald Trump on Sunday for backing out of a debate the White House hopefuls had once committed to while issuing a warning about the presumptive Republican nominee’s habit of backpedaling.

“Look, Donald Trump said he wanted to go forward, then he changed his mind, said no, then he changed his mind and said yes, then he changed his mind and said no. Maybe we'll get a call in five minutes and he'll say yes again,” Sanders said on CBS’ “Face the Nation.” “I think that is who Donald Trump is, and I think the American people should be very concerned about somebody who keeps changing his mind not only on this debate, but on virtually every issue he's been asked about.”


Trump bowed out of the debate last week after originally agreeing to do it during an interview with Jimmy Kimmel. The presumptive Republican nominee criticized the Democratic nominating process as rigged and declared he wouldn’t “debate the second-place finisher.”

Sanders, whose campaign for the Democratic nomination could be on the line in California on June 7, said he wouldn’t use the word “rigged." He did tout his successes against the party’s establishment, while complaining about his disadvantage with superdelegates who backed front-runner Hillary Clinton early.

“That's not rigged,” Sanders said. “I think it's just a dumb process which has certainly disadvantaged our campaign.”