The Vermont Senator, who said during the first debate that Americans are "sick and tired of hearing about your damn emails," declined an opportunity during the fourth debate Sunday to criticize Bill Clinton's past transgressions.
Sanders scoffed when he was asked if he regrets calling the past misdeeds of the former President "totally, totally, totally disgraceful and unacceptable" at a town hall in Iowa recently.
"That question annoys me," Sanders told NBC's Andrea Mitchell when asked about Bill Clinton again on Sunday. "I cannot walk down the street — Secretary Clinton knows this — without being told how much I have to attack Secretary Clinton, want to get me on the front pages of the paper, I'd make some vicious attack."
"I have avoided doing that," he said. "Trying to run an issue-oriented campaign."
Sanders added that though he does find some of Bill Clinton's past behavior "deplorable," his goal is to debate the issues, not the former President.
"I'm going to debate Secretary Clinton, Governor O'Malley, on the issues facing the American people," he said, "not Bill Clinton's personal behavior."