University of Virginia political scientist Larry Sabato dissects today’s key primaries in Colorado, Connecticut and Minnesota. Are Republicans poised to gain or keep seats in these states, or are Democrats holding on strong? Can the GOP really win in Connecticut? And how might the problems of Republicans in the Colorado governor’s race spill over into the U.S. Senate race? Sabato also discusses the legacy of former longtime Alaska Sen. Ted Stevens, who died in a plane crash in his home state.