From NBC/NJ's Athena Jones
At least SIX times McCain said Obama did not understand something.
First on tactics vs strategy; and then on Pakistan being a failed state when Musharraf took office; then on the connection between winning in Iraq and in Afghanistan and about meeting with a leader like Ahmadinejad without preconditions and then on the Russia-Georgia conflict; then again on the need to succeed in Iraq so al Qaeda doesn't establish a base there.
(And make that SEVEN times if you count McCain near the end saying more generally that Obama doesn't have the knowledge to lead due to his responses on Russa/Georgia, and his failure to acknowledge surge's success)
If McCain's argument in the first half of the debate was all about earmarks, in the second, it seemed to be about Obama's lack of understanding.
The question is whether viewers will agree with him on these specific points or just internalize his oft-repeated argument.