Is Alec Baldwin Leaving 30 Rock?

Alec Baldwin may leave 30 Rock after his contract is up. The Huffington Post reports that the two-time Emmy winner has one year left on his contract and is considering leaving the show after that. Says Baldwin:

"That's pretty much all I think about right now. To finish the show, I'm going to do this year then start thinking about what I want to do next. It's the big question. It's been a great experience, and I've loved doing the show. It changed my life. I'll never have it this good again, I know that. But I know that I've got to do something different, try something different. I don't know what that's going to be."
 

Could that "something" include political aspirations?