At least three left-wing activist groups have now called on Minnesota Sen. Al Franken to resign following sexual misconduct accusations against the Democratic senator.

A second woman, Lindsay Menz, has now come forward to accuse Franken of grabbing her buttocks while taking a photo with him at a state fair in 2010. That accusation comes after news anchor Leeann Tweeden accused Franken of forcibly kissing her and then groping her while she slept. Tweeden also released a photo that appeared to show Franken groping her breasts while she slept.

“We believe Lindsay Menz. We believe Leeann Tweeden. Senator [Franken] should be held accountable and he should resign,” left-wing activist group Indivisible said in a statement on Monday.

Credo, an organizing group of five million activists, similarly called on Franken to resign.

“Sen. Al Franken had the chance last week to take full responsibility for past sexual harassment, sexual assault and any other behavior that demeaned women. He failed to do so,” the group said in a statement. “Credo is committed to standing with women who speak out, holding perpetrators accountable and working to change the systemic and institutionalized misogyny that lets these behaviors continue without consequence.

“We believe that Sen. Franken should immediately resign from the U.S. Senate and that Gov. Mark Dayton should appoint a progressive woman to replace him.”

Another left-wing activist group, Justice Democrats, demanded Franken’s resignation after the first accuser came forward.

A petition launched by Justice Democrats calls on Franken to resign and for Minnesota Gov. Mark Dayton to appoint Democratic Rep. Keith Ellison to Franken’s seat. (RELATED: Keith Ellison Claimed Jews ‘Mobilized’ By Israel To ‘Do Its Bidding In America’)

The petition already has more than 7,000 signatures.

A spokesperson for Franken said on Saturday that the embattled senator has no plans to resign but is “doing a lot of reflecting.”