Tarnishing

Assuming that the Obama campaign isn’t scared off by the P.O.W. thing, can it really win in an exchange of character attacks? Probably not — but it doesn’t have to.

The central fact of this year’s election is that voters are fed up with Republican rule. The only way Mr. McCain can win the presidential race is if it becomes a contest of personalities rather than parties — and if his campaign can instill in voters the perception that Mr. Obama is a suspicious character while Mr. McCain is a fine, upstanding gentleman.

The Obama campaign, on the other hand, doesn’t need to convince voters either that he’s the awesomest candidate ever or that Mr. McCain is a villain. All it has to do is tarnish Mr. McCain’s image enough so that voters see this as a race between a Democrat and a Republican. And that’s a race the Democrat will easily win.

Especially since 8 in 10 say the country is going in the wrong direction.