Senate Minority Leader Chuck Schumer, D-N.Y., and the Democratic Senatorial Campaign Committee have joined a growing chorus calling for Maine U.S. Senate candidate Graham Platner to withdraw from the race following sexual assault allegations.

Platner is part of a wave of progressive newcomers to win Democratic primaries this year.

He said he is "taking the time" to consider his next steps after Politico reported allegations that he sexually assaulted a woman he was dating in 2021.

"The allegations reported today are incredibly disturbing — violence, abuse, and sexual assault are absolutely unacceptable," Schumer and Sen. Kirsten Gillibrand, chair of the DSCC, wrote in a joint statement.

"Graham Platner needs to immediately withdraw as the Democratic nominee for Senate and allow Maine Democrats the opportunity to choose a new candidate who can defeat Susan Collins. The DSCC will not invest in the Maine Senate race if Platner remains on the ballot," the statement read.

Under Maine law, Democrats have until July 13 for Platner to withdraw.

If he does, the state party would have two weeks to choose a replacement nominee.

Schumer backed Platner only after his preferred nominee — Gov. Janet Mills — was rejected by voters. Mills, 78, suspended her campaign shortly before the June 9 primary.

Platner's campaign faced renewed turmoil Monday after Politico published a detailed account from Jenny Racicot, a 41-year-old Maine woman who alleged that Platner sexually assaulted her in 2021.

"I remember him grabbing my pelvis and being really forceful of me," Racicot told Politico. "I remember the specific moment where I thought to myself, like, 'This is no longer my choice.'"

Platner denied the allegation but indicated he is weighing the future of his campaign.

"I wanted to directly address the troubling, serious, and false allegations against me. Any accusation of non-consensual behavior is categorically false," he said.

Platner has faced scrutiny in recent months over online posts, sexting with other women after getting married, and criticism over a tattoo that resembles a Nazi symbol.

He has disputed or pushed back on aspects of the allegations and has sought to reassure voters that he has changed from earlier periods of his life.

But after Monday's report by Politico, Schumer and the DSCC were not the only Democrats withdrawing their support.

"Over the past several weeks, multiple women have made serious, credible allegations against Graham Platner. Today's statements take those allegations even further," Maine's Democratic Party said in a statement.

"Maine Democratic Party leadership is calling on Graham Platner to withdraw as the Democratic nominee for U.S. Senate," the statement read.

Other progressives to call for his ouster Monday included Rep. Ro Khanna, D-Calif., and Sen. Ruben Gallego, D-Ariz.

"I've been very clear that sexual assault or violence against women is a red line," Khanna wrote on X.

"These allegations are very serious and credible. Graham Platner should drop out from the race. I am withdrawing my endorsement," Khanna wrote.

"The allegations against Graham Platner are troubling and deeply serious. I am rescinding my endorsement," Gallego wrote on X.