Why would people expect McCain to know why medical insurance companies cover Viagra and not birth control...
Sounds like good judgment to not answer something if not informed of the details by the insurance company verse NObama who would have just started talking and next week he'd have to come out once again and retract his statement because he "cough, cough" Miss-Spoke!!!
No video will ever top Al Gore on MTP when Tim Russert came out of the blue with question about if pregnant women on death row should be executed. Gore had been prepped to the enth degree before the interview, but hadn't been prepped for that question, and he stubbled all over himself trying to come up with an answer and coudln't do it.