Did Obama and/or McCain support the Iraqi war?

Obama wasn't in the Senate at the time the war started so we will never know. He gave a speech right before the war to some radical group in Chicago at the time, saying he was against it, but really had no access at that time to the intel which showed Iraq to be a threat. So who knows how he would have acted with the same intel as the rest of congress. Since he seems to be a follower, I ume he would have been in favor like all the other congress people.