U.S. Senate — By State
Key Battlegrounds

Top 5 Senate Races to Watch — Nov 3, 2026

  • Pennsylvania — Split delegation; high volatility in a true swing state.
  • Wisconsin — Classic swing state; Johnson faces pressure in 2028.
  • Georgia — Tight margins; Ossoff faces stiff 2026 challenge.
  • Arizona — Emerging battleground with competitive statewide field.
  • North Carolina — Tillis open seat in 2026 is a perennial battleground.
Based on split representation, term cycles, and historical competitiveness.
119th Congress · 2025–2027 · All 100 Seats

United States Senate

A complete reference of all 100 senators — track power, tenure, committees, and election exposure in one place.

100
Total Senators
53
Republican Seats
6
Year Terms
3
Election Classes
Democrat / Independent caucusing Dem
Republican
Total Senators
100
Democrats / Ind.
47
Republicans
53
Split States
—
Battlegrounds
—
Shown
100
U.S. Senate Tracker
Data reflects the 119th Congress (2025–2027). Ages and years in office are approximate as of 2025.
This is a nonpartisan reference tool. Not affiliated with any government body or political organization.

Educational Disclaimer: This tool is intended for educational and informational purposes only. All data, ratings, and figures presented herein are approximations derived from publicly available sources and are subject to change. Cook Political Report ratings, financial figures, and electoral margins are estimates and should not be relied upon as definitive or current. Users are strongly encouraged to conduct their own independent research and consult primary sources — including official government records, FEC filings, and reputable news organizations — before drawing conclusions or making decisions based on any information displayed here. The creators of this tool make no representations or warranties, express or implied, regarding the accuracy, completeness, or timeliness of any data presented.