Interpreting 2010 for 2012
For the short-view, check out Ronald Brownstein in the National Journal. Very good piece, although focusing so heavily on Colorado is misleading, because rich liberal activists invested millions in interest groups and news-ish organizations (to use Cory Crow's term) in Colorado as a crucible for political spending in the rest of the nation.
To get a fuller picture of how to interpret Brownstein's sliced and diced exit polls, check out Henry Olsen's excellent piece After the Wave in National Affairs.
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