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      Data: MIT Election Lab, VEST, Census Bureau
      Home›Candidates›William H. McMaster

      William H. McMaster

      Republican

      Won 3 consecutive elections (1920–1924)

      US SenateGovernor
      Electoral Grade
      C
      -17.0 pts
      avg overperformance
      Better than 20% of candidates4 graded races

      Overperformance vs. state presidential baseline. Incumbents held to a higher bar: Senate/Gov −3 pts, House −2 pts.

      4
      Races
      3-1
      W-L (75%)
      -16.3
      Avg Margin
      1920–1930
      Career Span
      Best: +3.3 (1930 Senate)Worst: -39.0 (1920 Governor)

      Career Margin Trend4 races

      R+40R+20EvenD+20D+401920192219241930

      Career Timeline

      1930 US SenateSouth Dakota
      99,595
      Candidate Votes
      48.4%
      Vote %
      205,912
      Total Votes
      +3.3%
      Margin
      Electoral Performance
      -21.2
      Race Score
      -24.2
      vs. Natl. Baseline
      D-21.0
      State Pres.
      Incumbent (−3pt bar)
      Top opponent: William J. BulowDEM
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