35 Senate seats are on the ballot in 2026: 22 held by Republicans and 13 by Democrats. That is the 33 regular seats plus two special elections for appointed senators. Every one of these members is open to the public below.
All 435 House seats are on the ballot too, as they are every two years. So only Senate cards get a ballot badge; a badge on every card would mean nothing.
Split states. In 4 states, the two senators are from different parties. Only one of those seats is on the 2026 ballot: Susan M. Collins (ME). That is about who holds the seats today, not a guess about who will win.
4 of these races are rated a toss-up, and 5 more are rated competitive, by Decision Desk HQ and Sabato's Crystal Ball. Those ratings are theirs, not ours. Each one shows its source and date, and none of them affects a grade. A grade comes only from recorded votes we checked against the official record. A seat with no rating is not necessarily safe; no one we cite has rated it.