One of the more provocative but little noticed passages in Bob Woodward's fascinating new book, The War Within, reports on a meeting between Defense Secretary Robert Gates and retired Army General Jack Keane, the White House's secret, backchannel conduit to the Iraq War commander, Gen. David Petraeus.

President Bush and Vice president Cheney were using Keane, a plain spoken Irishman with a boxer's face, to get around the Joint Chiefs of Staff and communicate directly with Petraeus, who'd presided over a dramatic reduction in violence in Iraq.  It didn't hurt that Petraeus welcomed more troops in Baghdad, while the Chiefs worried about U.S. forces being stretched too thin to handle emergencies elsewhere in the world. He'd also managed the Sunni tribes' U-turn on al Qaeda in Iraq

On April 7, the end of Petraeus's tour of duty was on the horizon, and Keane was working hard to convince the brainy general to take over CENTCOM, where he'd be responsible for U.S. military forces across the entire region, instead of the far more comfortable, and traditionally prestigious, slot as supreme commander of NATO.

Keane also wanted Gen. Ray Odierno, the highly regarded, "unsung hero" of the turnaround in U.S. fortunes in Iraq, to take Petraeus's job in Baghdad.

Both men opposed any withdrawal timetables of U.S. forces in Iraq while the situation remained dicey there.

An Obama administration would find it difficult to oust either of them, Keane argued to Gates.

"Let's be frank about what's happening here," Keane says.

    "We are going to have a new administration. Do we want these policies continued or not? Do we want the best guys in there who were involved in these policies, who were advocates for them?"

Keane presses Gates.

    "Let's assume we have a Democratic administration and they want to pull this thing out quickly, and now they have to deal with General Petraeus and General Odierno. There will be a price paid to override them."

After his July visit to Iraq and Afghanistan, Obama said he would listen to the senior military leadership on Iraq, but not be bound by their advice.

    "It is clear that Gen. David Petraeus, in his role as U.S. commander in Iraq, prefers 'maximum flexibility' over a timeline for troops withdrawal. The notion is that either I do exactly what my military commanders tell me to do, or I am ignoring their advice. No, I am factoring in their advice and placing it into this broader strategic framework."  

An Obama spokesperson could not be reached late in the afternoon, but it's safe to say that the Democratic candidate will replace, or keep, any general he wants to as commander-in-chief.

McKelvey: You liken Obama to Britney in your famous ad, while portraying yourself as the more serious candidate. Which celebrity would you like to be compared to? Bob Dylan? Jack Nicholson?

McCain: Kiefer Sutherland. [laughs, imitates a voice from the show 24] "It's Jack Bauer." We have a lot in common because he escapes all the time.

McKelvey: Um, he's also a torturer.

McCain: Yeah, that's right. That's where Jack and I disagree. He believes in torture, but I don't. He says, "Tell me where the weapons are." The person says, "I won't." Bam! "OK, I'll tell."