Senate Path to 51 Simulator
Republicans hold the majority at 50 seats with the Vice President's tiebreak; Democrats need 51 seats. Assign battleground states to see how the balance of power shifts in real time.
Call the Senate seats
11 seats rated Toss-up, Lean or Likely: the 9 Lean and Likely seats start with their leader and the toss-ups start undecided. Pick a winner in any of them and watch the tally and the seat chart move. Safe seats stay with their party.
How to read this chart
Each card is a race that is still open: rated Toss-up, Lean or Likely. Choose a winner on a card and the totals, the bar and the sentence above the cards change to match. Lean and Likely races start with the side the market favours, and toss-ups start undecided. Safe seats, and Senate seats not on the ballot this year, are already counted.
The percentage on each button is that side's chance of winning, from the TruthIndex™. Democrats need 51 Senate seats and Republicans need 50; in the House, either party needs 218. Copy the link to share your version of the map.
More in MethodologySafe or not upCalledUndecided
Democrats take the Senate with 52 seats.