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(Provided by Gigafact.)

No.

At no point in the last 20 years have Colorado Democrats held a supermajority in both chambers.

A supermajority is achieved when a party holds a two-thirds majority in each chamber, allowing it to override a governor’s veto and refer constitutional amendments to the ballot without bipartisan support, increasing its influence over state policy. 

Thirty-five senators and 65 representatives serve in the Colorado state legislature. A party would need 24 Senate seats and 44 House seats in any given year to gain that power. 

House Democrats held a supermajority in their chamber from 2022 until 2024, when Republicans flipped three seats. Both the House and Senate will be one vote shy of a two-thirds Democratic majority until the 2026 election.

Twenty-eight states have dual-chamber supermajorities in 2025, with Democrats in control in California, and Republicans in Utah, Wyoming and Idaho. 

See full source list below.

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The Colorado Sun partners with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. Read our methodology to learn how we check claims.

References:

Colorado State Senate, Ballotpedia, accessed August 2025. Source link

Colorado House of Representatives, Ballotpedia, accessed August 2025. Source link

Colorado Constitution, State of Colorado, accessed August 2025. Source link

Colorado General Assembly Overview, State of Colorado, accessed August 2025. Source link

Colorado Democrats lose supermajority in State House, Colorado Public Radio, Nov. 15, 2024. Source link

Veto overrides and supermajorities, National Conference of State Legislatures, accessed August 2025. Source link

Type of Story: Fact-Check

Checks a specific statement or set of statements asserted as fact.

Tyler has spent the last three years reporting on the environment, culture and local government in Colorado. Most recently, he spent time as a staff reporter and photographer for Boulder Weekly, where he covered the rapidly growing city of Longmont...