First Barack Obama invited a gay bashing preacher to his campaign, then he lit out on Social Security. Atrios points out that this is a strange way to try to attract Democratic voters. In defending the Black anti-gay preacher, Obama said he was trying to reach out to the Black and Evangelical constituencies. Pardon me, but wouldn't the way to do this be to encourage Blacks to be less homo-phobic, instead of pandering to their bigotry?
The only reasonable explanation I can think of is that Obama has thrown in the towel, and is now angling for a veep nod by out-Clintoning Clinton. That leaves Edwards as the only progressive candidate in the top three.