Sanders annoyed by questions about Bill Clinton

Presidential candidate Bernie SandersBernie SandersTrump: It's not certain Russia hacked DNC Sanders warns: Debate is not ‘entertainment show’ Charlotte requires race discussion Hillary, Democrats refuse to have MORE repeated Sunday that Bill ClintonBill ClintonMark Cuban: I went 'rogue' on front-row seat tweet Trump: I didn't say what I wanted to about Clinton's personal life Trump, Clinton get under each other's skin at debate MORE’s past marital infidelities are “deplorable” but indicated he isn’t interested in talking about them.

“That question annoys me,” Sanders said at the Democratic debate in South Carolina when asked whether he regretted calling the former president's actions “totally disgraceful and unacceptable.”

“I cannot walk down the street — Secretary Clinton knows this — without being told how much I have to attack Secretary Clinton,” Sanders said of his rival for the party's nomination, former Secretary of State Hillary ClintonHillary Rodham ClintonLeslie Jones on debate: Trump 'sounds like a car salesman' Mark Cuban: I went 'rogue' on front-row seat tweet Trump praises Lester Holt after debate MORE.

After Sanders made the comment, Clinton adviser John Podesta attacked him. The senator on Sunday insisted he would not engage in negative campaigning against Hillary Clinton.

“I have avoided doing that, trying to run an issue-oriented campaign,” he said to huge applause from the audience. 

Asked by NBC reporter Andrea Mitchell why he answered the question, Sanders said: “I was asked a question. Then if I don't answer, then it's another front-page story.

“Yes, his behavior was deplorable,” Sanders continued. “But I'm going to debate Secretary Clinton and Gov. [Martin] O'Malley on the issues facing the American people” and not on Bill Clinton's personal life.

Republican front-runner Donald Trump has repeatedly used the former president's sex scandals as lines of attack, calling him “one of the great woman abusers of all time.”

The real estate mogul has defended his remarks, saying Bill Clinton is fair game after Hillary Clinton accused Trump of having a “penchant for sexism.”