Presidential hopeful Newt Gingrich has taken another swipe at President Barack Obama's decision to no longer defend the Defense of Marriage Act (DOMA).

The Clinton-era law bans the federal government from recognizing the legal marriages of gay and lesbian couples. In announcing the decision, Attorney General Eric Holder said that he and the president believe parts of the law are unconstitutional.

The former House Speaker returned to Iowa this week to address the Rediscovering God in America conference.

In an interview with the American Family Association's (AFA) Bryan Fischer, Gingrich once again criticized Obama for his decision to no longer defend the law in court.

“I think it's very bad judgment on his part,” Gingrich told his host. “It tells you how selective this administration is.”

“If there is a rule of law, then it means that if the Congress passes a bill and the president signs it, the president has an obligation to support and sustain the laws of the United States. His oath of office says that he will sustain the laws of the United States and he will faithfully execute them. So, you can't faithfully execute something you refuse to defend.”

“Sometimes, by the way, you end up defending things as president you don't actually like,” he added.

Gingrich also backed off from a previous statement that the president's move was an impeachable offense: “I was actually picking up on a conservative radio's commentary … I don't think it's an impeachable offense.” (The video from is embedded in the right panel of this page.)