The most recent poll shows that a plurality of people who voted for both Obama and Brown did so as a protest vote because they feel that both the House and Senate versions of the health care bill don't go anywhere near far enough, rather than too far. So that means, for instance, had Congress already passed a bill with a public option, those people would not have voted for Brown. The poll also showed that the poor showing of Democrats at the polls was for the same reason - they feel that the proposed bills don't go far enough.