2026 blue wave in charts: Data shows Senate Democrats won bigger margins while Republicans lost ground

Democrats capture Senate seats
Democrats won 20 of the 33 Senate races projected so far, out of 35 contests on the ballot. Seven states flipped a previously Republican-held seat to a Democrat, and eight Democratic wins were in states President Trump carried in 2024.
Alaska and Mississippi Senate races are still considered toss-ups. The article reports that Democrats will control both chambers of Congress after the midterms.
Results show tighter Republican margins
In Florida, Republican Sen. Ashley Moody won reelection by 3 points, compared with Trump’s 13-point margin in the state in 2024. The 2026 figures are as of Nov. 4, with 99% of votes in.
Comparing Senate and presidential races
Across states where Democrats won Senate races in 2026, their average margins were twice as large as Harris’ winning margins in those states in the 2024 presidential election. The article also includes a table comparing every 2026 Senate race with the 2024 presidential race margins.
Key points
- Democrats won 20 of the 33 Senate races projected so far.
- Seven states flipped a Republican-held Senate seat to a Democrat.
- Alaska and Mississippi Senate races remain toss-ups.
- Democratic Senate wins had average margins twice Harris’ 2024 winning margins in those states.

