He's either insulting leftists or the American system is wholly incongruent with the real spectrum of world views, right? He can call them money grubbing and ineffectual and he'd be spot on, but c'mon man, I'm posting hard over here and I feel like chopped liver the way he ignores me!
It's to tar the centrists in eyes of his supporters. To insist the Democrats are all radical dangerous leftists. They thought Obama was a socialist don't forget.