Why it sucks to be a progressive

A thorough and (as usual) eloquent summary by Glenn Greenwald of the "powerlessness of progressives." A quote:

Why would anyone in Washington -- surrounded by powerful lobbyists and people whose threats are actually credible -- ever take seriously or listen to a person who thinks and behaves this way (I'll support anything you want even if you ignore me, as long as I get a single crumb), and even proudly announces it in advance? They never would listen to such a person -- and they don't -- because that's the sure path to self-imposed irrelevance.