Senate blocks CRA resolution to restore Colorado regional haze plan, 46-52

The Senate voted 46-52 on April 29, 2026, to block a Congressional Review Act resolution that would have overturned the EPA's rejection of Colorado's Regional Haze Plan — a Biden-era rule requiring upwind states including Texas, Oklahoma, and Kansas to reduce pollution fouling visibility at Colorado's national parks. Senators Michael Bennet and John Hickenlooper forced the vote under the CRA's expedited procedures. The party-line vote left Colorado's parks exposed to continued haze from out-of-state industrial sources.