A top aide for Democratic presidential candidate Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE's campaign on Monday ripped attacks on Bill Clinton William (Bill) Jefferson ClintonD-Day for Trump: September 29 Trump job approval locked at 42 percent: Gallup If Trump doesn't know why he should be president again, how can voters? MORE's past infidelity by GOP rival Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE, saying Trump has gone “in the gutter.”

Clinton campaign chairman John Podesta also issued a warning to Clinton's Democratic rival Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.) to stay away from the topic.

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“I hope he's not going there,” Podesta said of Sanders during an appearance on MSNBC's “Andrea Mitchell Reports” after the host noted it seems “there's some piling on here” by Sanders.

“He said that he's going to run a positive campaign, that he wasn't going to go in for personal attacks and I take him at his word on that,” Podesta continued.

“But I hope he's not thinking about going there, because, again, I think what Trump has done to go in the gutter is reprehensible,” the Clinton campaign chairman added.

Sanders fielded a question late Friday at a town hall in Iowa about Bill Clinton's affair with White House intern Monica Lewinsky.

“Hillary Clinton is not Bill Clinton. What Bill Clinton did, I think we can all acknowledge was totally, totally, totally disgraceful and unacceptable. But I am running against Hillary Clinton. I am not running against Bill Clinton,” Sanders told the questioner, according to The Washington Post.

Trump has for several weeks knocked the Clintons over Bill Clinton's sexual history, and on Sunday argued that Hillary was “an enabler” for her husband.

Clinton's campaign manager maintained on Monday that Bill Clinton “remains an asset for us.”

“People remember the tremendous job he did as president, particularly on the economy,” Podesta said. “So he remains an asset for us and I think that he'll continue to campaign for us.”