As of July 13, 3,061 major party candidates have filed to run for the Senate and House of Representatives in 2020.

So far, 475 candidates are filed with the Federal Election Commission (FEC) to run for U.S. Senate. Of those, 379—191 Democrats and 188 Republicans—are from one of the two major political parties. In 2018, 527 candidates filed with the FEC to run for U.S. Senate, including 137 Democrats and 240 Republicans.

For U.S. House, 3,072 candidates have filed with the FEC to run. Of those, 2,682—1,259 Democrats and 1,423 Republicans—are from one of the two major political parties. In 2018, 3,244 candidates filed with the FEC, including 1,566 Democrats and 1,155 Republicans.

Thirty-six members of the U.S. House are not seeking re-election in 2020. That includes 27 Republicans and nine Democrats. Four senators (three Republicans and one Democrat) are not running for re-election. In 2018, 55 total members of Congress—18 Democrats and 37 Republicans—did not seek re-election.