Salena Zito on the perils of the big tent. “Competing agendas” is certainly one way to put it. More realistically, there’s no more single grand unifying idea for liberals or the progressive movement. It’s a series of policy initiatives with no common thread. Don’t get me wrong, I’m all for health care (and this reform doesn’t go nearly far enough), but until you can package it as part of a greater big idea, you won’t get many takers.

Both parties have seen splinter groups and fringe movements, but there’s a chance we’re on the verge of something much more fundamental.