In the 2020 United States Senate elections, a total of 35 Senate seats were up for election. This included 33 regular elections for Class 2 Senate seats and 2 special elections. Out of the 35 seats, 23 were held by Republicans and 12 by Democrats prior to the election. The elections resulted in a 50-50 split between Democrats and Republicans in the Senate, with Vice President Kamala Harris having the tie-breaking vote starting in 2021.
