PORTLAND, Maine (AP) — Graham Platner is set to take questions from voters Sunday at a town hall-style event in Maine as the Democrat moves to stabilize his Senate campaign after new reports about his past treatment of women.

The evening event in Portland is taking place two days before a Democratic primary that is still seen as Platner’s to win, but which could provide clues as to whether enthusiasm for his iconoclastic candidacy has softened.

The New York Times on Thursday reported an ex-girlfriend’s allegations that Platner repeatedly grabbed her by the shoulders during arguments and once twisted her arm behind her back and locked her in a room. Platner has repeatedly called those allegations of violence untrue.

Other Platner ex-girlfriends interviewed by the Times described positive experiences, while some said he was volatile and insulting. That story came days after news reports revealing that Platner had exchanged sexually explicit messages with several women while married.

Despite the allegations, no major Democrats who had previously endorsed Platner have rescinded their support. Platner is running to oust Republican Sen. Susan Collins in November.

Platner held a rally with California Rep. Ro Khanna in Bar Harbor on Friday, where he received a standing ovation and declared that Mainers “have my back.”

A combat veteran, Platner has repeatedly said that he struggled with alcohol and post traumatic stress disorder after his military service, but says he is a changed man.

The latest news has deepened some Democrats’ nervousness about Platner, who already faced scrutiny over online posts that were dismissive of sexual assault and a skull tattoo recognized as a Nazi symbol. Platner has apologized for the posts and covered up the tattoo., saying he didn’t realize its significance when he got it.

Rahm Emanuel, a potential 2028 Democratic presidential candidate who spent the weekend in neighboring New Hampshire, said the “jury is still out” on whether Platner can beat Collins.

“Everybody is holding their breath whether this is the start of something or the end of something,” he said. “If it’s the end, that’s one thing. If it’s the beginning of something and we’re not done, that’s another thing.”

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Associated Press writer Steven Sloan contributed to this report from Warren, New Hampshire. Kruesi reported from Providence, Rhode Island.

Patrick Whittle And Kimberlee Kruesi, The Associated Press