This election never has been about John McCain, though his candidacy is sure to revive a debate about the worst presidential candidates of all time.

No, this is a referendum on Barack Obama. And many Republicans are exuding the confidence of a hopelessly quixotic sports fan — a person who watches his atrocious team struggle for three quarters with the false expectation that some miraculous comeback is imminent in the fourth.

It rarely is.

McCain consistently has remained inconsistent, vacillating between promises and populism. From his support of cap and trade to his actions during the bailout, McCain's positions seem entirely focused on winning the middle-of- the-road vote.

No modern Republican ever has won the presidency solely focused on the ambivalent, squishy, inattentive center. Those people don't care enough to name their political parties, much less pay attention.

But he's a maverick . One of McCain's central arguments has been his uncompromising valor in opposing the Bush administration.

Here's a newsbreak: Disagreeing with the Bush administration on a handful of issues (often the wrong ones, in McCain's case) doesn't make you a maverick; it makes you an average American. And sadly, the second debate proved that McCain would be incapable of making his party's philosophical or political case even if he genuinely tried.

When Obama claimed during the second debate that raising taxes on the rich is the equivalent of giving them a "break," McCain, terrified of defending anyone in a Lexus, failed to make an assertive case that economic freedom helps everyone.

When Obama claimed he would lower income taxes for 95 percent of Americans, even though nearly 40 percent of households don't pay a single cent in income taxes, McCain just smiled.

When Obama continued his absurd insistence that our financial mess was caused only by Bush-era "deregulation," McCain struggled to place the blame where it belongs: on government meddling.

And when Obama contended that his economic plan would be a "net" cut in spending, McCain should have spit the water out of his mouth like a character on a sitcom because that's exactly what the senior senator from Arizona is starring in.

Those Republicans anticipating a fourth-quarter comeback during the debate were hit instead with a wet fish. Did the putative Republican candidate just propose that the U.S. Treasury renegotiate millions of mortgages at a better price?

Was McCain simply unable to articulate a more complex position? It sounded a lot like a comprehensive nationalization of the mortgage industry. It sounded a lot like hundreds of billions of additional tax dollars.

Yep, he meant it. It's called the American Homeownership Resurgence Plan. It will stabilize the economy. And Obama will stop global warming. And McCain will find bin Laden, even if he has to do it with his bare hands. And … well, at this pace, we're about two debates away from being promised free lemonade and snickerdoodles.

None of these promises has worked. So now the McCain campaign will set its sights on Bill Ayers, the Rev. Wright, Tony Rezko and other members of the Legion of Doom. All of them are legitimate topics of conversation, but with less than a month to go, the conversation reeks of desperation.

In fact, the entire campaign has been one big act of publicity stunts. McCain's shining moment this campaign, as far as I can tell, was a funny ad comparing Obama to Paris Hilton.

What McCain's candidacy does tell us is that the Republican Party — even if it miraculously pulls this one out — is in need of some creative destruction. Not ideological purity, but ideological renewal.

Because being a "maverick" is a political slogan, not a political philosophy.

David Harsanyi is a columnist at The Denver Post and the author of "Nanny State." Visit his Web site at www.DavidHarsanyi.com. To find out more about David Harsanyi and read features by other Creators Syndicate writers and cartoonists, visit the Creators Syndicate Web page at www.creators.com.

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