A public-interest group that investigates and prosecutes government corruption has filed an ethics complaint against radical Democratic Congresswoman Ilhan Omar.

On Tuesday, Judicial Watch hand-delivered an ethics complaint to David Skaggs, chairman of the U.S. House of Representatives Office of Congressional Ethics, calling for a full investigation into potential crimes tied to allegations that the Minnesota lawmaker may have married her biological brother.

Judicial Watch claims it has "substantial, compelling and, to date, unrefuted evidence" that Omar may have committed crimes in violation of both federal and state law. JW president Tom Fitton says their complaint is based on social media posts and sources within the Somali-American community.

"The information appears to give probable cause to investigate Omar for eight instances of perjury, immigration fraud, marriage fraud, up to eight years of state and federal tax fraud, two years of federal student loan fraud and even bigamy," Fitton explains.

"To be clear, the facts describe perhaps the most extensive spree of illegal misconduct committed by a House member in American history," he adds.

Fitton emphasizes this isn't about Omar's ideology. "Although she is ideologically quite noxious, she engages in this sly dishonest anti-Semitism," says the group's president. "She's viciously anti-Israel. She supports a supposedly U.S. organization that the U.S. government has believed to be a front for the terror group Hamas."

Minnesota Republican State Representative Steve Drazkowski has filed a separate ethics complaint against Omar with the House Ethics Committee that is related to immigration fraud.