Ron Brownstein focuses some attention on the much-neglected subject of hard-right opposition to any hints of reasonableness on the part of Republican Party politicians. When Joe Lieberman faced a primary challenge for the sin of relentlessly supporting a catastrophically failed policy, the political establishment reacted as if this was the End Times. Now that Chuck Hagel is facing a primary challenge for the sin of mildly gesturing toward the idea that maybe we should avoid catastrophically failed policy, nobody seems to care.

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