Nate Silver ponders Romney's endorsement dominance and his polling weakness:
Gaps of this magnitude [between endorsements and polling] are not common historically. Unless the measures are brought into better alignment in the next several weeks, 2012 will represent a key test between competing political science theories about how nominations are decided. Do party officials lead the process, eventually coaxing the voters to their preferred candidates? Or has popular support become the key driver and grown more immune to the establishment?
The latter, surely. Remember Clinton-Obama last time around?