Sen. Arlen Specter was soundly defeated in Pennsylvania, Sen. Blanche Lincoln may not survive a runoff in Arkansas and the establishment GOP candidate in Kentucky was routed. What do these results tell us about the mood of voters in 2010? What role is the Tea Party having? Why should Republicans be very sobered by Democrats hanging on to an open House seat in Pennsylvania? We get insight from Larry Sabato, director of the Center for Politics at the University of Virginia.
