Are Republicans about to cave on tax hikes?

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Thing is, Jacob, when the Republicans came to Democrats with that 85%-15% figure, and the White House responded by offering a deal of 87%-13%, the Pubbies walked out, suddenly insisting the budget deal was to include no tax adjustments (100%-0%), which, as I understand it at the moment, is still their position.

That's not negotiating, it's psychosis.  If I wanted to buy a house from someone, and the seller set a price at $250,000, and I said: "mmm, not bad, but there's this thing and that thing that needs fixing, so I'll give you $242,000," if the seller then sent back an amendment saying he now wanted $305,000, I'd stop making offers.  Not only wouldn't I negotiate anymore, I'd be worried about what kinds of ghosts were in the house.