Paul Krugman: Accentuate the Negative

So the Obama campaign has turned to the politics of personal destruction, attempting to make a campaign issue out of John McCain’s inability to remember how many houses he has. And the turn comes not a moment too soon.

Over the past month or so many Democrats have had the sick feeling that once again their candidate brought a knife to a gunfight. Barack Obama’s campaign, inexplicably, was unprepared for the inevitable Republican attack on the candidate’s character. By the middle of last week, Mr. Obama’s once formidable lead, both in national polls and in electoral college projections based on state-level polls, had virtually evaporated.