Where Obama stayed away, and Bill Clinton campaigned for the Democrat - -
An aide to the late Democratic Rep. John Murtha won a special election to fill the final months of his boss's term — a nationally watched contest considered a potential bellwether for this fall's midterm election.http://www.usatoday.com/news/politics/2010-05-18-murtha_N.htm
The blue collar centrist Clinton Democrats still don't like Obama.
They voted for Obama in November '08, but only because of the economic collapse.
They're ready to vote against his reelection in 2012.