MRD raises a very good point, and the post-election polling is ... confusing, to say the least. Poor Senator Brown has a very mixed-up constituency.

Looking at what Brown’s voters want him to do with respect to health care, we see that they are divided right down the middle: 50% (47% strongly) do want Brown to work to halt Democratic health care efforts, and 48% (40% strongly) want him to work with Democrats to make changes to their proposals. Half of Brown’s voters want him to sink Obama’s agenda, full stop, and approximately half of them want him to collaborate with Democrats. That is what we might call a mixed message.