Tuesday’s congressional primaries will mark the beginning of the end for some House members, and others are at risk of losing to primary challengers. House members in California and Texas are giving up safe seats for the chance to serve in the Senate. A member-on-member battle in Alabama will see one second-term member lose his seat. And a nearly 30-year incumbent from Houston is facing a strong challenge from her former intern.
Those are some of the key races that will be decided on Super Tuesday. While 15 states and one territory will hold presidential primaries on March 5, voters in a handful of states will also choose nominees for this year’s House and Senate races. Here’s what you need to know:
