So says Bob Novak in his weekly newsletter, Evans-Novak Political Report:

McCain has yet to show that he understands the role of a presidential nominee. He still sometimes acts like a back-bench senator, as when he ordered the North Carolina Republican Party to take an ad off the air (a request that ought to have been made by Republican National Chairman Mike Duncan). McCain has been told to knock it off.

Told by whom? No one has the authority to demand much of anything of the nominee, and with this nominee, I’d hate to be the guy who tried.