At last night's fourth Republican debate, there were several heated moments, most involving Ron Paul, who continues to be the maverick anti-war candidate.

It was interesting to see him tangle with other politicians, particularly Mike Huckabee, and he drew a decent amount of applause, but there was one disconcerting phenomenon: every time he started to talk, one of the other candidates started to laugh.

You can hear some of it on this video montage of Paul's answers (laughter at 6:40, for example, when Chris Wallace is asking about Paul's plan to eliminate American intelligence-gathering enterprises). Who is it? Rudy Giuliani? Whoever it is, it seems disrespectful. I'm not saying this because I have a horse in this race, necessarily, but because it seems tonally so wrong.