In the 2022 U.S. Senate and U.S. House elections, the winning candidate’s margin of victory (MOV) was ten percentage points or fewer in 85 races and five percentage points or fewer in 46 races.
Ten of the races decided by ten percentage points or fewer were for the U.S. Senate, and 75 were for the U.S. House. Six of the races decided by five percentage points or fewer were for the U.S. Senate, while 40 were for the U.S. House.
Congressional elections decided by ten percentage points or fewer represent approximately 18% of the 470 U.S. Congressional elections in 2022. Congressional elections decided by five percentage points or fewer represent approximately 10%.