More signs of senescence in McCain

John McCain on Sarah Palin quoted from Political Ticker at cnn.com:

This is not the first time that I've seen a governor being questioned by some quote, "expert." I remember that Ronald Reagan was a "cowboy." President Clinton was a governor of a very small state that had "no experience" either. I remember how easy it was going to be for Bush I to defeat him. But the point is I've seen underestimation before. I'm very proud of the excitement that Gov. Palin has ignited with our party and around this country.