Here's a good video of him talking to reporters afterwards:
http://www.youtube.com/watch?v=Nh_c5bbvmqc"Q: Sir, what role did McCain's negativity play in your decision?
POWELL: It troubled me. You know, we have two wars. We have economic problems. We have health problems. We have education problems. We have infrastructure problems. We have problems around the world with our allies. And so those are the problems the American people wanted to hear about, not about Mr. Ayers, not about who is a Muslim and who's not a Muslim. Those kinds of images going out on al Jazeera are killing us around the world. And we have got to say to the world it doesn't make any difference who you are or what you are. If you're an American you're an American. "
I've always had a great respect for Powell. And I have to say that it's about time that someone in the Republican party stood up and did the honorable thing and called them out on the BS about Obama being a closet muslim. And yes, I am looking at you when I say that Rob.