Rep. Steve Driehaus (D-Ohio), who lost his bid for reelection last month, is reviving a fight with the anti-abortion group Susan B. Anthony List — this time in federal court. 

Driehaus announced Friday that he's suing the group for defamation, charging that it knowingly misled voters on his position on public funding for abortion.

During the campaign, Driehaus launched a complaint with Ohio's Board of Elections in an attempt to prevent the Susan B. Anthony List from erecting billboards claiming the Democrat cast a vote in favor of public abortion funding in supporting the healthcare law. 

The billboards never went up and Driehaus dropped the complaint with the state board after the election, but now he is moving ahead with a defamation suit. 

"A lie is a lie," attorneys for Driehaus wrote in the lawsuit, according to the Cincinnati Inquirer. "The First Amendment is not and never has been an invitation to concoct falsehoods aimed at depriving a person of his livelihood."

No formal response has been issued yet from the Susan B. Anthony List.