Just to be clear…

I usually steer clear of politics here, but I just want to check on something. According to John McCain, it’s bad to be a celebrity, right?
So, why was he not using this tactic when he was trying to win his party’s nomination over a former senator turned actor?
Also, doesn’t this sort of fly in the face of his party’s worship of a former B-grade Western cowboy?
Perhaps this is a new rule. In which case, I’m sure he’ll be very careful to not repeat mistakes like making a cameo appearance in the movie Wedding Crashers.