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Alabama Senate|By Jennifer Duffy, April 21, 2017

Among Kay Ivey’s first acts in her new role as Governor was to overturn a decision by her predecessor Robert Bentley to hold the special election to finish the remainder of former Jeff Sessions’ term on November 8 of 2018 to coincide with state and federal elections. Ivey took the side of those who have argued that a special election must be held this year. As such, she set a primary for...

Senate Overview|By Jennifer Duffy, April 14, 2017

Our most up-to-date take on 2018's Senate races

Senate Overview|By Jennifer Duffy, March 31, 2017

MINNESOTA: Democratic U.S. Sen. Amy Klobuchar was easily re-elected to a second term in 2012 with 65 percent of the vote, which helps explain why ambitious Republicans aren’t forming a line to challenge her next year. The other factor that could well spare Klobuchar a competitive challenge is the open-seat Governor’s race in 2018, which has generated great interest among Republicans looking to...

Senate Overview|By Jennifer Duffy, March 24, 2017

ALABAMA: On February 9, Republican Gov. Robert Bentley appointed then-state Attorney General Luther Strange to fill the seat vacated by U.S. Sen. Jeff Sessions who resigned to become Attorney General, and announced that a special election to fulfill the remainder of Sessions’ term would be held in November of next year. Although Bentley instituted a formal process to pick Sessions’...

Senate Overview|By Jennifer Duffy, February 17, 2017

The year-end 2016 FEC reports are out, providing a first look at the beginning cash-on-hand balances for Senate incumbents up for re-election in 2018. While these numbers are hardly determinant of the outcome of races that will occur 20 months from now, they do shed some light as to how much thought and early preparation have gone into a re-election bid.

Senate Dashboard

Seats Up in 2016 Toss Up Lean D Likely D Solid D Seats Up in 2018 Seats Up in 2020
Democrats (48) 12 2 1 1 8 25 11
Republicans (52) 22 5 3 3 11 8 22
Toss Up Lean R Likely R Solid R

Senate Race Ratings Map

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  • At-A-Glance
    A listing of candidates and race ratings in all current Senate races. Updated weekly and printable for on-the-run reference.
    Updated 08:52 AM, Jun 30
  • Race Ratings
    The Cook Political Report's latest ratings for all competitive and potentially competitive Senate seats.
    Updated 10:01 AM, Feb 9
  • General Election Polls
    A selection of public opinion polling in Senate general election contests across the nation.
  • Primary Trial Heats
    A selection of public opinion polling in Senate primary election contests across the nation.
    Updated 08:00 AM, Sep 12
  • FEC Report
    A summary of key financial information filed by Senate candidates with the Federal Election Commission.
    Updated 06:58 AM, Nov 4
  • 2014 Battleground Chart
    2014 Senate Races: Romney Performance vs. Obama Performance
    November 12, 2012
  • 2012 Senate General Election Polls with Final Results
    A collection of polling data from the 2012 cycle, with final general election results included.
  • Two-Term Presidents: Post-WWII Partisan Trends
    Opposing party gains under and following second term presidents.
  • Senate Scatterplot
    The Cook Political Report Senate Scatterplot for Republican and Democratic held states by win percentage and PVI.
  • Senate: 2014 55% and Under Charts
    The chart below displays Senators up for reelection in 2014 who won with less than 55% of the vote in 2008.

Jennifer Duffy, Senior Editor

Jennifer Duffy is Senior Editor for The Cook Political Report, where she is responsible for U.S. Senate and Governors races.
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