Today he said "My fellow prisoners" at a rally. Some are saying it's a Freudian slip about his having been a POW. I think the man has been under so much stress and pressure both from his advisers and himself that he doesn't know where he is much less what he is saying. After all McCain directly contradicted himself multiple times in the same speech just last week, as Jon Stewart pointed out.
Here's video (via ThinkProgress.org):