After Midterm Elections, the President's Party Typically Looses Seats in the U.S. Senate
Data shows the number of U.S. Senate seats lost or gained by the president's party in midterm elections from 1946-2018.
Data collected by the Brookings Institution for the years 1946 to 2018 show that after midterm elections, the president's party typically looses seats in the U.S. Senate.