Each square is one Senate seat; the black line marks control. Toss-ups run from most Democratic-leaning (left) to most Republican-leaning. Solid squares are not on the ballot this year; lighter squares are races expected to stay with one party. Ratings: Cook Political Report, Oct. 30.
The 7 races that decide it
MichiganHeld by Democrats
Mike Rogers Republican
Abdul El-Sayed Democrat
8 of 12 forecasters lean D · 4 toss-up · 0 lean R
MaineHeld by Republicans
Susan Collins Republican, incumbent
Troy Jackson Democrat
6 of 12 forecasters lean D · 6 toss-up · 0 lean R
Ohio (special)Held by Republicans
Jon Husted Republican, incumbent
Sherrod Brown Democrat
5 of 12 forecasters lean D · 7 toss-up · 0 lean R
TexasHeld by Republicans
Ken Paxton Republican
James Talarico Democrat
5 of 12 forecasters lean D · 7 toss-up · 0 lean R
AlaskaHeld by Republicans
Dan Sullivan Republican, incumbent
Mary Peltola Democrat
Daniel J. Sullivan Jr. Independent
4 of 12 forecasters lean D · 8 toss-up · 0 lean R
KansasHeld by Republicans
Roger Marshall Republican, incumbent
Adam Hamilton Democrat
1 of 12 forecasters lean D · 10 toss-up · 1 lean R
IowaHeld by Republicans
Ashley Hinson Republican
Josh Turek Democrat
Thomas Laehn Libertarian
0 of 12 forecasters lean D · 10 toss-up · 2 lean R
The House: 218 seats for control
Today: 214 D · 218 R · 1 I · 2 vacant. All 435 seats are on the ballot. Clerk of the House, Nov. 2
The national vote: five poll averages agree
Decision Desk HQD +8.9
FiftyPlusOneD +8.6
NBC NewsD +8.0
RealClearPoliticsD +8.9
Silver BulletinD +8.8
Which party voters plan to back for Congress, nationally. Range: D +8.0 to D +8.9. As of Nov. 1