Or perhaps someone - unusually for the Rs - is being a spiteful and vindictive little shit for the sake of it.
This is one of those 'We'll never know' situations.
But we do know the entire press corps is coming Alaska looking for red meat stories, so I'm not sure malice is even necessary.
But someone could be pushing it to kill McCain's campaign in hopes of a 2012 run, positioning himself/herself as The Savior of the Party. WHEEEEEEEEEEEEEEEEEEEEE!