Aminder: the crazy teabaggers are hurting the GOP's chances to stop the health care bill.

I think this is correct.

They ramped up much too quickly. When smaller, conservative groups Astroturfed, they inevitably brought to the meetings the type of Republican activist who was itching for a fight and who would use the format to vent frustrations at President Obama himself. There were plenty of activists who really wanted to know about health care, and some who were probably misinformed -- scared out of their chairs -- to some degree, but the loudest voices tended to be the craziest, the most extreme, the least sensible, and the most easy to mock.

...

Unrestrained, these town hall meetings are going to turn off the type of voters Republicans most need to pressure Blue Dog Democrats -- independents who don't have red genes or blue genes. Both Fox and MSNBC televised Sen. Arlen Specter's raucous town hall meeting live. It was full of confrontation and protest. There were boos when Specter reaffirmed his president's Americanness.

Yeah, they went from zero to crazy way too quickly. The problem for the GOP is their shock troops are nuts, so relying on them to pursuade the middle ain't gonna work.