Nonpartisan Analysis Since 1980

California
Senate

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State map

Current Rating

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No Rating

2025 Baseline

What's This?
D +22.4
D: 61%, R: 38.6%

2028 Election

Class III

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Past Elections

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Analysis

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Primary Results in Alabama, Georgia and Oklahoma

June 17, 2026
by Nicholas Demba, Jacob Rubashkin & Nathan Gonzales

12 Initial Takeaways from Tuesday’s Elections

November 5, 2025
by Nathan Gonzales

2026 Senate Overview (Oct. 23, 2025): Alabama – Kansas

October 23, 2025
by Jacob Rubashkin

2024 Senate Results Recap

November 15, 2024
by Jacob Rubashkin

2024 Senate Overview (May 9, 2024): Arizona – Maine

May 9, 2024
by Jacob Rubashkin

Key Primary Results in Illinois and Ohio

March 20, 2024
by Jacob Rubashkin

Key Super Tuesday Results in Alabama, North Carolina and Texas Congressional Races

March 6, 2024
by Jacob Rubashkin

Report Shorts (Feb. 23, 2024)

February 23, 2024
by Jacob Rubashkin

2024 Senate Overview (Feb. 9, 2024): Arizona – Maine

February 9, 2024
by Jacob Rubashkin

California Senate: Only the Top Two Survive

January 26, 2024
by Jacob Rubashkin

Ratings

2026
March 1, 2026
Not Up This Cycle
January 9, 2025
Not Up This Cycle
2024
November 9, 2023
Solid Democrat
February 17, 2023
Solid Democrat
January 6, 2023
Solid Democrat
January 6, 2023
Not Up This Cycle
2022
January 8, 2021
Solid Democrat
2020
January 4, 2019
Not Up This Cycle
2018
January 13, 2017
Solid Democrat
January 13, 2017
Not Up This Cycle
2016
January 9, 2015
Solid Democrat
2014
January 25, 2013
Not Up This Cycle
2012
January 28, 2011
Solid Democrat
January 1, 2011
Not Up This Cycle
2010
October 29, 2010
Lean Democrat
October 22, 2010
Tilt Democrat
October 1, 2010
Lean Democrat
July 23, 2010
Tilt Democrat
June 24, 2010
Not Up This Cycle
June 24, 2010
Lean Democrat

Baselines

About
2025+22.4D 61.0, R 38.6
2024
+22.4
2022
+23.1
2020
+21.3
2018
+21.1
2016
+15.5
2014
+15.3