For the Clinton’s, it’s pure revenge. Has nothing to do with McCain.
RE: “For the Clinton’s, it’s pure revenge. Has nothing to do with McCain.”
Revenge, yes. But it doesn’t hurt that the Clintons do tolerate McCain and Hillary and John actually get along very well. It’s well known that McCain befriended her, showed her the ropes, when she first won her senate seat and I would suspect that to her that counts for something.
Of course, if McCain happens to win this thing now, the friendship won’t prevent Hill from ripping McCain apart in a 2012 campaign should he run for re-election. Anything goes in politics, eh? To McCain, it would just be politics as usual.