Republicans Sen. Bob Bennett, co-sponsor of the Wyden-Bennett health care bill, is down in the polls. Ezra Klein explains what this means for the rest of us:

Bennett looks likely to lose primary. And the main example of his perfidy? Cooperating with a Democratic senator to develop a market-driven universal health-care proposal that would've covered every American with private insurance and abolished Medicaid.

Bennett isn't a liberal. He's not even a moderate. But he's a legislator: He's willing to work with the other side to get things done. And he's paying for it now.

The result of this isn't just that Bob Bennett might lose his seat. It's that other legislators will stop legislating.

Chait has complementary thoughts.

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