U.S. Senate Model
Updated on November 4, 2024 at 03:19 PM Eastern Time.

After two years of a divided Senate, ⅓ of Senate seats are up for election.
This model is updated daily, and uses state-level and national-level polls combined with fundamentals to create an accurate picture.
Overview
The Senate is rated as Lean Republican.

Probability
The Democrats have a 35.8% probability of winning the Senate,
while the Republicans have a 56.9% probability of winning the Senate.

Majority
The Senate is projected to have a majority of R+4.6
with 47.7 seats going for the Democrats
and 52.3 seats going for the Republicans.
Map
Here's a map of the race!

State Table

Change Over Time


Methodology
Rating Categories
Under 60%: a Tossup | 60% to 70%: Lean Democrat or Lean Republican | 70% to 95%: Likely Democrat or Likely Republican | 95% or above: Safe Democrat or Safe Republican
Data Sources
OpenSecrets | Redistricter | FiveThirtyEight | Dave's Redistricting | Wikimedia Commons | Wikipedia | Daily Kos | CA SoS Shirley Weber | WA SoS Steve Hobbs | Bokeh
Methodology Statement
You can read my methodology statement by clicking on this link, or you can view it directly in the website blog (the blog is broken though, for now.)
Download the Data