I found a graph at Wikipedia, but I can't get it to post.
People tout McCain’s 82% approval rating on conservative matters. That’s his overall rating. I heard his most recent rating, the last voting year, is only 65%. I don’t think he’s getting more conservative. I could live with a John McCain of several years ago. Sadly, now he is becoming a caricature of the angry old man.
He is an angry old man.