Bush’s impact on the next Republican presidential candidate did not have to be so devastating. McCain isn’t, as he and his defenders keep protesting, a passive martyr to a catastrophic administration. He could have made separating himself from Bush the brave, central and even conservative focus of his campaign. Far from doing that, he embraced the Bush ethos  if not the incredible shrinking man himself  more tightly than ever. The candidate who believes in “country first” decided to put himself first and sell out his principles. That ignoble decision is what accounts for both the McCain campaign’s failures and its sleaze. It’s a decision McCain made on his own and for which he has yet to assume responsibility.

Though it seems a distant memory now, McCain was a maverick once. He did defy Bush on serious matters including torture, climate change and the over-the-top tax cuts that bankrupted a government at war and led to the largest income inequality in America since the 1930s. But it isn’t just his flip-flopping on some of these and other issues that turned him into a Bush acolyte. The full measure of McCain’s betrayal of his own integrity cannot even be found in that Senate voting record  90 percent in lockstep with the president  that Obama keeps throwing in his face.

The Bushian ethos that McCain embraced, as codified by Karl Rove, is larger than any particular vote or policy. Indeed, by definition that ethos is opposed to the entire idea of policy. The whole point of the Bush-Rove way of doing business is that principles, coherent governance and even ideology must always be sacrificed for political expediency, no matter the cost to the public good.

Like McCain now, Bush campaigned in 2000 as a practical problem-solver who could “work across the partisan divide,” as he put it in his first debate with Al Gore. He had no strong views on any domestic or foreign issue, except taxes and education. Only after he entered the White House did we learn his sole passion: getting and keeping power. That imperative, not the country, would always come first.

One journalist who detected this modus operandi early was Ron Suskind, who, writing for Esquire in January 2003, induced John DiIulio, the disillusioned chief of the White House Office of Faith-Based and Community Initiatives, to tell all. “There is no precedent in any modern White House for what is going on in this one: a complete lack of a policy apparatus,” DiIulio said. “What you’ve got is everything  and I mean everything  being run by the political arm. It’s the reign of the Mayberry Machiavellis.”

Image Frank Rich Credit... Fred R. Conrad/The New York Times

If politics strongarm everything, you end up with the rampant cronyism, nonexistent long-term planning and abrupt, partisan policy improvisations that fed the calamities of Iraq, Katrina and the economic meltdown. Incredibly, McCain has nakedly endorsed the Bush-Rove brand of governance in his own campaign by assembling his personal set of lobbyist cronies and Rove operatives to run it. They have not only entangled him in a welter of conflicts of interest, but they’ve furthered cynical political stunts like the elevation of Sarah Palin. At least Bush and Rove didn’t try to put an unqualified hack like, say, Alberto Gonzales half a heartbeat away from the presidency.