Biden says Trump is a 'joke' for calling Democrats 'treasonous'

White House press secretary Sarah Sanders attempted to clarify Trump's comments by telling reporters Tuesday that the President was "clearly joking" at the time.

"Well let me tell you, he's a joke," Biden said in an interview later Tuesday with CNN's Chris Cuomo.

Asked to clarify if he was calling Trump a joke, the former vice president said, "Yeah, I mean, in this kind of stuff."

During a speech Monday at a manufacturing plant in Ohio, Trump criticized Democrats who chose not to clap during parts of his first State of the Union speech.

"They were like death and un-American. Un-American. Somebody said, 'Treasonous.' I mean, yeah, I guess, why not," Trump said.

"I think he understands, and I think the people around him understand, what presidents say matters," Biden said, adding, "It's just amazing the outrageously inaccurate things the President says."