The U.S Senate race between longtime, Democratic incumbent Bob Casey and David McCormick is too close to call. With 96-percent of the vote counted, McCormick has a one-point lead at 49.2% to Casey’s 48.2%. Casey has won his last three reelection bids since taking office back in 2006. McCormick has never held an elected office, but he built name recognition when he went head-to-head with Dr. Mehmet Oz for a Republican Senate seat nomination two years ago.