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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2026/US Senate/Oklahoma
      2026 ForecastSafe R
      2026·US Senate·Oklahoma

      Oklahoma US Senate

      Incumbent
      RMarkwayne Mullin
      Senate Class 2

      Race Analysis

      Analysis coming soon.

      Updated 2026-02-18

      State Demographics

      Oklahoma vs. National · Pop. 4.0M

      White (non-Hispanic)62.1%
      National: 57.4%
      Black7.0%
      National: 12.2%
      Hispanic/Latino12.7%
      National: 19.3%
      Asian2.4%
      National: 6.0%
      College Degree28.5%
      National: 35.6%
      Median Income$65,795
      National: $83,960
      Median Age37.1
      National: 39.1

      Seat History

      US Senate in Oklahoma(Class I)

      2022
      James LankfordREP
      R+32.2
      2022(S)
      Markwayne MullinREP
      R+26.5
      2020
      Jim InhofeREP
      R+30.2
      2016
      James LankfordREP
      R+43.2
      2014(S)
      James LankfordREP
      R+38.9
      2014
      Jim InhofeREP
      R+39.5
      2010
      Tom CoburnREP
      R+44.5
      2008
      Jim InhofeREP
      R+17.5
      2004
      Tom CoburnREP
      R+11.5
      2002
      Jim InhofeREP
      R+21.0
      1998
      Don NicklesREP
      R+35.1
      1996
      Jim InhofeREP
      R+16.6
      1994(S)
      Jim InhofeREP
      R+15.4
      1992
      Don NicklesREP
      R+20.4
      1990
      David L BorenDEM
      D+66.3
      View all US Senate history for Oklahoma →

      Also in Oklahoma, 2026

      Governor
      Safe R      ← 2026 Forecast Overview
      ← 2026 Forecast OverviewOklahoma profileAll elections