In the 14 congressional races, Democrats received more votes than Republicans:
Democrats: 1,515,716 (49.15%)
Republicans: 1,463,854 (47.47%)
Democrats got more votes, but Republicans were victorious (again) in 9 of the 14 races. They accomplished that by stuffing as many Democrats into as few districts as possible. The average margin of victory for winning Dems was 86,410; the average GOP win margin was 42,243.