Tools
Try a scenario. See the math.
Call races yourself, shift every state at once, build an electoral map or test what you know about how elections work. Each tool starts from published data and shows you the arithmetic under the choices you make. None of them is a forecast.
What if · Senate · House · Governors
Call the races yourself
Pick a side in the closest races and watch the chamber counts and control lines move with every pick.
OpenSwingometer · 2024 results
Move every state at once
One slider shifts every 2024 margin by the same amount. See which states change sides and where the count lands against 270.
OpenElectoral College
Build your own electoral map
Click states to assign them, starting from the 2024 results or a blank map, and count to 270.
538270Maine and Nebraska districts
Open Play · Civic quiz
Ballot BoxTwelve questions about the rules behind the ballot, each answered with a link to the official text.PlayBefore you start
How to read the results
- Every result reads as: if these choices hold, then this is the count. It is your scenario, not a prediction.
- Blue and red stand for the Democratic and Republican sides, and the party name is always written next to the color.
- Each tool lists its data source, the date it was checked and how confident we are in it.
- For race-by-race information, see your ballot.