From Cohn's health care summit thumb-sucker:
Republicans seem to believe these problems are fundamentally unsolvable, at least in any manner they would find acceptable. And this explains the message Republicans delivered over and over again on Thursday: Rip up the bill and start over. That's not a plea for compromise. That's a demand for capitulation. And it frames the choice for Democrats pretty clearly. Either they will act alone, or they will not act at all.
Karen Tumulty's analysis is similar.