Congressional Races 2024 Party Affiliation. The balance of power in the house of representatives will likely be decided by 43 of the most competitive races, according to the most recent ratings by the cook political report. Senate elections in 2024 shaded by the incumbent's or most recent incumbent's political affiliation.

Senate elections in 2024 shaded by the incumbent’s or most recent incumbent’s political affiliation. Hover over a district for more.