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.

Franks told Keyes that he would support “in a moment” defunding the Department of Justice over the decision, then added that he would “absolutely” support impeaching Obama.

“If it could gain the collective support, absolutely,” Franks said. “I called for [Attorney General] Eric Holder to repudiate the policy to try terrorists within out civil courts, or resign. So it just seems like that they have an uncanny ability to get it wrong on almost all fronts.” (The video is embedded in the right panel of this page.)

New York Congressman Jerrold Nadler said he was “shocked” by Frank's comments.

“I am shocked by Chairman Franks' reckless call to impeach President Obama, and I call upon the House Republican leadership to take impeachment off the table,” Nadler said in a statement.

“By declining to defend in court the constitutionality of a law he believes is unconstitutional, he is defending the Constitution, and by enforcing the law until a court declares it unconstitutional, he is taking 'care that the laws be faithfully executed.'”

The 53-year-old Franks serves as chairman of the Subcommittee on the Constitution.