Up to 30 Democratic senators have called on US Senator Al Franken to resign amid sexual misconduct claims.
In statements released almost simultaneously on Wednesday, a group of Democratic lawmakers said the embattled Minnesota senator must step down.
Mr Franken, a former Saturday Night Live comedian, has been accused of groping and sexually harassing seven women, including a US military veteran.
He has apologised to his accusers, while disputing some allegations.
His Twitter account posted: "No final decision has been made and the Senator is still talking with his family."
Senators Kamala Harris, Claire McCaskill, Maggie Hassan, Mazie Hirono, Patty Murray, Kirsten Gillibrand - all prominent female Democratic lawmakers - released their statements online.
They spoke out following a US media report that Mr Franken had allegedly tried to forcibly kiss a former congressional aide in 2006. He denied the claim,.