During the debate, Republican challenger Geoff Diehl pointed out Warren is alleged to have fundraised off Brett Kavanaugh's Supreme Court confirmation hearings, asking for donations in exchange for her vote against the nominee.
"Senator Warren was fundraising illegally using the vote on Justice Kavanaugh, the confirmation vote, to try to raise money for her campaigns," Diehl said.
Diehl was referencing a complaint sent Monday to the Senate Select Committee on Ethics. The Foundation for Accountability and Civic Trust (FACT) sent the complaint to Sens. Johnny Isakson (R., Ga.) and Chris Coons (D., Del.), the respective committee chairman and vice chairman.
It alleges Warren fundraised based off her intended vote on Kavanaugh’s confirmation to the Court. The Senate prohibits "linking a promise of official action to a solicitation of campaign contributions."