8:52 p.m. ET: Democrat Tom Perriello loses House seat in Virginia. President Obama made last-ditch campaign stop for Perriello last week. GOP now needs 35 more House wins to gain control.
8:49 p.m. ET: CNN's John King reports Manchin and Blumenthal wins make it "nearly impossible" for GOP to win control of the Senate. GOP must run the table going forward.
8:41 p.m. ET: RNC Chairman Michael Steele on CNN predicts 50-60 GOP pickups in the House. Also says he has not decided whether he will run for reelection as RNC chairman.