From Mark Link at the Democratic Party Blog:

McCain’s latest display of his lack of foreign policy understanding came today when said he wouldn’t divert troops from Iraq to Afghanistan to keep his promise to chase bin Laden to the gates of hell unless Gen. Petraeus said it was necessary.

Of course, Gen. Petraeus would not be making that determination about what was required in Afghanistan. Instead, that would be Lieutenant General Martin Dempsey, who temporarily replaced Admiral William Fallon as chief of Centcom.