break the extremists' hold on Congress.
Republicans are breaking.
The U.S. Chamber of Commerce, the bedrock of traditional Republicanism, now says that it will get involved in Republican primaries by providing financial support to incumbent Republicans who vote to reopen the government and raise the debt ceiling. In other words, if some Republicans act responsibly and then have to face tea party challengers accusing them of being RINOs, the Chamber will have the back of those reasonable Republicans. It's a civil war within the GOP, folks.
That's how far off the deep end the tea party and right-wing House Republicans have gone. They've lost the Chamber of Commerce. Heads must be exploding in the Bush family compound.