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Montana · Montana Senate District 48 · Updated Oct 16, 2026

Andrea Olsen

DemocraticIncumbent

Incumbent senator

Electoral history

Earlier races in Montana, newest first, matched by name in the results archive.

  1. 2022

    State Senate · SD-50 Nov 8, 2022

    D · 72.6% · 7,455 votes

    Won
  2. 2020

    House of Representatives · HD-100 Nov 3, 2020

    D · 82.3% · 5,336 votes

    Won
  3. 2018

    House of Representatives · HD-100 Nov 6, 2018

    D · 100.0% · 5,104 votes

    Won
  4. 2016

    House of Representatives · HD-100 Nov 8, 2016

    D · 79.2% · 4,379 votes

    Won
  5. 2014

    House of Representatives · HD-100 Nov 4, 2014

    D · 100.0% · 3,252 votes

    Won
  6. 2014

    House of Representatives · HD-100 primary · Jun 3, 2014

    D · 73.4% · 1,102 votes

    Won