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Ballotpedia
Ballotpedia
National
Nathan Maxwell

Most contested state legislative incumbents in Colorado since 2010

In 2026, 15% of the state legislative incumbents running for election in Colorado will face primary contests, a record high since 2010.

In total, nine incumbents face contested primaries across the Colorado House and Senate. The average number of incumbents contested each year from 2010 to 2024 was five. Six of the contested incumbents are Democrats, and three are Republicans.

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