4 theories — you haven't heard them all before! — about what happened in the first debate.

One of my theories is that Obama was preoccupied by what had happened in Benghazi 3 weeks ago, perhaps scrambling to keep it from turning into a scandal that would sink his campaign. Bob Wright's response is — absurdly — to bring up the ridiculous old theory that the high altitude in Denver played havoc with Obama's big brain.