What he says is that most pundits spit "talking points", implying that he thinks there's a general tendency towards spitting a party line rather than original thought and discourse. If you watch Glenn dismantle some of those pundits in interviews and debates on TV (ex: http://www.youtube.com/watch?v=XInz4i6AV8M ), you'll probably agree regardless of your political leanings that he's a cut above most pundits.