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How did Ken Buck vote on Environmental Protection?

Ken Buck voted Yea on 7 and Nay on 5 of the 20 Environmental Protection roll calls in the House in the 118th Congress, and did not vote on 1, as of Nov 9, 2026.

On the 10 of those where most Democrats and most Republicans voted on opposite sides, he voted with Republicans 100% of the time (median for House Republicans: 100%).

Environmental Protection votes
Yea7
Nay5
Did not vote1
Environmental Protection roll calls in the House20
With Republicans on party-line votes10 of 10 (100%)
House Republicans, median100%

Source: Voteview roll calls (UCLA) · policy area of each bill from congress.gov · How we measure · Updated Nov 9, 2026

The 10 most recent of 13 Environmental Protection votes

DateMeasureTitleVote Party split (yea)Result
Mar 22, 2024 H.R. 1023 Cutting Green Corruption and Taxes ActOn Passage · This bill repeals certain programs for reducing greenhouse gas emissions. Not voting Passed
209–204
Mar 22, 2024 H.R. 1023 Cutting Green Corruption and Taxes ActOn Motion to Recommit · This bill repeals certain programs for reducing greenhouse gas emissions. Nay Failed
206–211
Mar 21, 2024 H.R. 7023 Creating Confidence in Clean Water Permitting ActOn Passage · This bill modifies requirements under the Clean Water Act, including requirements concerning water quality criteria, the National Pollutant… Yea Passed
213–205
Mar 21, 2024 H.R. 7023 Creating Confidence in Clean Water Permitting ActOn Motion to Recommit · This bill modifies requirements under the Clean Water Act, including requirements concerning water quality criteria, the National Pollutant… Nay Failed
205–213
Mar 21, 2024 H.R. 7023 Creating Confidence in Clean Water Permitting ActOn Agreeing to the Amendment · This bill modifies requirements under the Clean Water Act, including requirements concerning water quality criteria, the National Pollutant…Broke w/ party Yea Failed
99–323
Mar 11, 2024 H.R. 886 Save Our Seas 2.0 Amendments ActOn Motion to Suspend the Rules and Pass, as Amended · This bill reauthorizes through FY2025 and modifies the Marine Debris Program and makes other modifications to the Marine Debris Act.Broke w/ party Nay Passed
326–73
Dec 6, 2023 H.R. 4468 Choice in Automobile Retail Sales Act of 2023On Passage · This bill limits the authority of the Environmental Protection Agency (EPA) with regard to regulating emissions standards for new motor… Yea Passed
221–197
Dec 6, 2023 H.R. 4468 Choice in Automobile Retail Sales Act of 2023On Motion to Recommit · This bill limits the authority of the Environmental Protection Agency (EPA) with regard to regulating emissions standards for new motor… Nay Failed
201–214
Sep 14, 2023 H.R. 1435 Preserving Choice in Vehicle Purchases ActOn Passage · This bill modifies the waiver process under the Clean Air Act related to state emission control standards for new motor vehicles (or new… Yea Passed
222–190
Sep 14, 2023 H.R. 1435 Preserving Choice in Vehicle Purchases ActOn Motion to Recommit · This bill modifies the waiver process under the Clean Air Act related to state emission control standards for new motor vehicles (or new… Nay Failed
193–212

All 13 are in the full voting record, part of Pro.