Pay close attention at the 22 second mark, you can see a faint puff of smoke come from Burton’s ears as his brain completely jams up.

Andrea Mitchell: In reality when he said the private sector is doing just fine, what went on in your stomach as you were watching it?

Bill Burton: Well there’s no doubt that, umm, you know, the, the, that, it was, there was, a distraction.

Note: I transcribed the video to save you the grief of having to listen to Andrea Mitchell’s shrill voice.