Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE’s campaign announced Sunday night that it had canceled tentatively planned events with Sen. Bernie Sanders Bernie SandersJacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee Trump campaign plays up Biden's skills ahead of Cleveland debate: 'He's actually quite good' Young voters backing Biden by 2:1 margin: poll MORE (I-Vt.) for Monday.

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Instead, her primary rival will now be on the campaign trail Wednesday in Iowa and Wisconsin.

“Wednesday's Des Moines stop was added to make up for appearances tentatively scheduled in Iowa on Monday, October 3,” the campaign said in a release.

Sanders will be in Des Moines, Iowa, in the morning, and will host rallies in Madison and Green Bay, Wis., in the afternoon.

He will discuss the Democratic nominee’s “plan to build an economy that works for everyone, not just those at the top, and Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's plan, which would benefit himself and other millionaires and billionaires,” the campaign said.

Though unclear if it’s related, the schedule change comes a few days after audio from a February fundraiser leaked that made public Clinton’s take on fans of her then-rival Sanders, whom she suggested were overly idealistic.

"There’s just a deep desire to believe that we can have free college, free healthcare, that what we’ve done hasn’t gone far enough, and that we just need to, you know, go as far as, you know, Scandinavia, whatever that means, and half the people don’t know what it means but it is something that they deeply feel,” she said.

Sanders, who ran for president as a member of the Democratic Party, said "of course" it bothered him that Clinton said he sold a "false promise" to his supporters.

But, he said Sunday, his supporters should still vote for her.

He also defended her statement.

"Well, I agree with her, what she is saying," Sanders said on CNN's "State of the Union."

"There are young people who went deeply into debt, worked very hard to get a good education, and yet get out of school and can't get decent jobs ... and are living in their parents' basements. There is a point there."

GOP presidential nominee Donald Trump said Sunday night that Sanders should revoke his endorsement.

“Bernie should pull his endorsement of Crooked Hillary after she decieved [sic] him and then attacked him and his supporters,” Trump tweeted.