Independently re-verified; all three cited sources are real, live, and support the finding. (1) The engrossed Senate text of S.J.Res. 58 (118th Congress) on congress.gov confirms the measure is a Congressional Review Act disapproval of the DOE rule 'Energy Conservation Program: Energy Conservation Standards for Consumer Furnaces' published December 18, 2023 -- the rule at issue in the promise -- providing that 'such rule shall have no force or effect.' (2) The official Senate roll call (vote 118-2-176) confirms the joint resolution PASSED 50-45 (5 not voting) on May 21, 2024, with Cruz voting Yea. (3) Cruz's own Senate press release (live) and Utility Dive both confirm Cruz SPONSORED the resolution, introduced it in February 2024, and drove it to floor passage, picking up Sens. Manchin, Brown and Casey plus Sen. Sinema. That is leadership of the effort, not a single supporting vote. The effort did not land: Cruz's release itself urges 'the House to take up this Resolution expeditiously and pass it,' the Biden White House had signaled a veto, the resolution died with the 118th Congress, and Federal Register API searches for 'consumer furnaces' and 'non-condensing' furnace documents published from 2025-01-01 through July 2026 turn up no rescission, withdrawal, or repeal of the December 2023 standard -- so the rule was never blocked or overturned. Fairness check under a party-blind standard: a senator of either party who authored a CRA resolution, whipped it to bipartisan Senate passage, and then saw it die in the other chamber against a veto threat would be rated CHAMPIONED (+0.75) -- more than ATTEMPTED (he did far more than vote for it) and short of FULL (the targeted rule remains in force). Note on neutrality: the characterization that the rule 'effectively bans' non-condensing furnaces is Cruz's framing; DOE projected the 95% AFUE standard would cut household utility costs by about $1.5 billion annually. That dispute does not change the rating, which measures Cruz's action against his stated commitment. One prior-rating claim -- that the D.C. Circuit upheld the rule in November 2025 -- could not be independently verified in this pass and has been dropped from the rationale rather than repeated; it was not load-bearing, since the absence of any rescission in the Federal Register already establishes the rule stands.