On 2026-04-29, the Senate voted on A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period".. The recorded result was Motion to Proceed Rejected, with 46 Yea and 52 Nay votes. See how each senator voted below.