John McCain will likely go down in history as the first Republican presidential nominee who vaulted to the front of the pack despite failing to win a plurality among self-identified Republicans in any of the early state primaries.

According to Florida exit polls, the Arizona senator tied Mitt Romney among voters who described themselves as Republican, but pulled away to victory with a nearly 2-1 advantage among independents. That formula powered McCain's wins in New Hampshire and South Carolina and has made him the front-runner heading into Super Tuesday.

It's no mystery why independents gravitate towards McCain. He's a country-first, party-second kind of guy who speaks bluntly and delights in poking fellow Republicans in the eye on issues such as campaign finance reform and global warming.

But there's a bizarre disconnect in the warm embrace between McCain and the electorate's mavericks. They hate the Iraq war, while he's willing to fight it for another century. The most pro-war presidential candidate in a decade is winning the 2008 GOP nomination thanks to the anti-war vote.

A full 66 per cent of independents think that the US should completely withdraw from Iraq no later than 12 months from now, according to a January 18-22 Los Angeles Times/Bloomberg poll.

McCain, meanwhile, said in January recently that the US might stay in Baghdad for another 100 years. He continually expresses bafflement at the idea that that might not be such a good thing. "It's not the point! It's not the point!" he snarled at reporters recently. "How long are we going to be in Korea?" Yet he dominated the anti-war vote in New Hampshire, with 44 per cent to Romney's 19 per cent, according to CNN exit polls.

Ron Paul, the only actual anti-war Republican running, drew just 16 per cent of voters who said they were against the war. The three finished in the same order among anti-war voters in Michigan, even though Romney won the state overall.

Radical doctrine

So the voters most hostile to the war are backing a potential commander in chief who makes Bush look gun-shy.

More than three years before the Bush administration elucidated the radical doctrine of pre-emptive war, McCain unveiled a plan during his first run at the presidency called "rogue-state rollback," in which "we politically and materially support indigenous forces within and outside of rogue states" - including Iraq, North Korea and Serbia - "to overthrow regimes that threaten our interests and values". And if the "odious regimes" crack down on freedom fighters, the US should respond with force. In that campaign, McCain was the neocons' choice against the more internationally "humble" George Bush.

McCain has advocated threatening North Korea with "extinction", and memorably sung about how we should "bomb bomb bomb, bomb bomb Iran".

He agitated for military intervention in Darfur, regrets that we didn't send troops to Rwanda and is fond of rattling sabres in the general direction of Moscow and Beijing. During the US bombing of Kosovo in 1999 - when McCain showily suspended his presidential campaign because he'd rather lose a campaign than lose a war - the senator drew media raves for managing to support the intervention while simultaneously slamming the president for not threatening more overwhelming force.

This easily discoverable uber-hawkishness runs in the family. His four-star Navy admiral father helped prosecute the war in Vietnam and delivered famous lectures about the role of US sea power in making the world safe for democracy. His four-star Navy admiral grandfather worshipped at the altar of interventionist extraordinaire Teddy Roosevelt. If the US has an imperialist class, as historian (and informal McCain adviser) Niall Ferguson has advocated, then John McCain sits at its head.

Still, too many people, wowed by the candidate's considerable charm, have convinced themselves that launching wars is for icky people like that Bush fellow, not Our John.

"He knows war," the Des Moines Register wrote, in one of roughly 17,000 newspaper endorsements of McCain over the last two months, "something we believe would make him reluctant to start one".

For voters tempted by such delusions, it's wise to recall the famous words of the last septuagenarian to successfully seek the presidency: Trust, but verify.

Matt Welch is editor of Reason magazine and author of McCain: The Myth of a Maverick.