GOP adviser Karl Rove has accused President Barack Obama of using the gay marriage issue for political gain.

Appearing on Fox News on Friday, Rove attacked the president for dropping his previous stance on the issue – that he is “evolving” – and making an endorsement.

“How political is this, he changed his mind but he was waiting until it was close to the convention in order to wring the maximum amount [of] benefit out of it. This thing at the end will be a negative for the president. He gains in the gay community and among young voters. But frankly opposing 'Don't Ask, Don't Tell,' refusing to defend the Defense of Marriage Act (DOMA), everybody sort of got the sense when he said, 'I'm evolving in my position,' that it sort of signaled to people, 'Give the flexibility. After the election I'll change.'”

He added that the endorsement was a “net negative” for the president.

Rove is best known for making gay marriage a wedge issue in the 2004 presidential election.

Commenting on Rove's remarks at, Jon Bershad said: “Seriously, Karl Rove is going to attack someone else for politicizing gay marriage? … This interview is basically like watching Michael Jordan go on TV and accuse someone else of being a basketball player.”

(Related: Majority approve of Obama's gay marriage nod.)