Hardcore conservatives agree with liberals on a lot. They just don’t want to compromise.
This is based on the Pew typology survey, which finds that "steadfast conservatives" oppose compromise by a 2:1 margin, while every other group favors compromise by at least a little bit. At the far left end of the spectrum, "solid liberals" favor compromise by 84-11 percent.
This is the same result that we've seen in lots of other surveys, and I sure wish someone would dig deeper into this. I can think of several questions:
You can probably guess that I'm a little skeptical of the entire notion that liberals are all sweetly willing to compromise. They certainly talk in a more conciliatory manner than tea partiers, and maybe in the end they really are more willing to swallow half a loaf. But I have my doubts. More research, please.