Transcript for Matt Gaetz rejects calls to resign
We move on to embattled Florida congressman Matt Gaetz, fiercely defending himself over allegations of sexual misconduct and sex trafficking. Gaetz rejecting calls to resign, defiantly telling a conservative women's group he's not going anywhere. Here's ABC's Maryalice parks. Reporter: Tonight, Florida congressman Matt Gaetz defiant. I'm built for the battle, and I'm not going anywhere. Reporter: Dismissing calls to resgn at a "Women for America first" event at former president trump's club in Doral, Florida. And I won't be extorted. The truth will prevail. Reporter: The house ethics committee launching a new bipartisan investigation into Gaetz, examining allegations of sexual misconduct, illicit drug use, and accusations that the congressman may have shared inappropriate and explicit images on the house floor. The justice department investigating whether Gaetz and his associate Joel Greenberg paid women, who were allegedly recruited online, for sex and travel. Greenberg is already facing sex trafficking charges. He pled not guilty, but ABC news has learned that he is now considering a plea deal and could be cooperating with federal investigators. Greenberg's lawyer speaking out. I'm sure Matt Gaetz is not feeling very comfortable today. Reporter: The congressman's office responding broadly in a another statement out Friday saying, these allegations are blatantly false and have not been validated by a single human being willing to put their name behind them. But two members of Gaetz's staff have resigned amid the allegations, but still Gaetz insisting he's not going anywhere. Maryalice, our thanks to you tonight.
This transcript has been automatically generated and may not be 100% accurate.