The point where McCain lost me

Edit from seven years later:

whatever image this was, it's lost.

I will fit something else here to pass the time.

This is another moment where McCain burned a bridge: where he told Letterman he had to race back to DC for a budget crisis, only for Dave to find out that McCain actually went to the news studio to sit in for another interview.  People don't like to get blown off like that, Senator...