The relevant part about marriage, via CBN News:

[Perry is] such a believer in states rights that he's defended state decisions that he fundamentally disagrees with.

But on issues like traditional marriage, which he says are important to the fabric of the nation, he supports amending the constitution to make it the law of the land.

"I support the federal marriage amendment and I also support the same with the issue of abortion. And I also that same process for a balanced budget amendment to the United States Constitution so Washington will finally get the message of, 'Hey, quit spending all the money," Perry explained.

His announcement on whether he's running for president is expected in the next few weeks.

Here's the video:

If he runs, will he take the Marriage Pledge?