Sean Trende
theorizes that in the close Senate races the Dem candidates might be hemmed in by Obama's low approval ratings, and find at the end of the day that it will be very hard to get folks to vote for them who don't approve of Obama's act. One interesting bit is the hypothesis that the Dem uptick in NC recently had more to do with Hagen being the only Dem candidate in the tight races whose poll numbers were running behind the Dem "fundamentals" rating which has to do with Obama's popularity in a state - so she, and she alone, of the Dem candidates had room for her numbers to go up, which they did.
