Paul Krugman: The Republican Rump

Maybe the polls are wrong, and John McCain is about to pull off the biggest election upset in American history. But right now the Democrats seem poised both to win the White House and to greatly expand their majorities in both houses of Congress.

Most of the post-election discussion will presumably be about what the Democrats should and will do with their mandate. But let me ask a different question that will also be important for the nation’s future: What will defeat do to the Republicans?