George Bush must really hate John McCain. How else can you explain his decision to insert himself so clumsily into the presidential campaign?

At a time when John McCain needs a divorce from President Bush in the worst way possible, Bush hugged McCain even closer. And, remarkably, McCain returned the embrace.

That's Bush-McCain unity.

And you better believe it'll help bring together not just the Democratic Party, but everyone who wants to see America change direction.

So thanks, President Bush. You've finally done something useful.