Congressman Trent Franks has publicly advocated impeaching President Barack Obama for deciding to no longer defend the Defense of Marriage Act (DOMA).
The Arizona Republican is the first elected official to call for the inquiry.
Obama announced last week that he believed parts of the law are unconstitutional and ordered the Department of Justice to stop defending the law in court. The Clinton-era law bans federal agencies from recognizing the legal marriages of gay and lesbian couples and allows states to ignore such marriages from other states.
Franks made his comments in a videotaped interview with Think Progress' Scott Keyes at the Tea Party Patriots Policy Summit in Phoenix.