Arizona Senator John McCain has denied a claim by the Christian conservative group Family Research Council (FRC) that he's working to undo repeal of “Don't Ask, Don't Tell.”

President Obama signed a bill on Wednesday that repeals the 1993 law that bans gay and bisexual troops from serving openly.

The Senate approved repeal over the weekend after McCain twice rallied fellow Republicans to filibuster a defense spending bill which included repeal language.

“We'll be spending the next couple of weeks reassessing the 'Don't Ask, Don't Tell' debate,” the FRC said in a blog post Tuesday. “In fact, I've already been in conversations with Hill leaders about holding hearings in the New Year, as well as statutory and legislative oversight steps that can be taken to turn back aspects of the repeal and slow down – if not stop – the rest.”

“Sen. John McCain (R-Ariz.) and others will be working with FRC to put a strict evaluation process in place. We want to ensure that the Pentagon is monitoring the effects of this radical change on the men and women in harm's way.”

But a McCain source has denied the claim, telling Talking Points Memo that “the law has been changed.”

Before senators voted for repeal on Saturday, McCain, sensing defeat, said, “Today is a very sad day.”