In 2022, 2,422 major party candidates appeared on the primary ballot for 474 seats in the U.S. Congress. The seats included 34 U.S. Senate seats, the seats of all 435 U.S. Representatives, and the seats of five of the six non-voting delegates to the U.S. House.
Of the 2,422 candidates who appeared on the primary ballot, 989, or 40.83%, were Democrats, and 1,433, or 59.17%, were Republicans.
