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ChampionedTransportation

Enact the Transportation Megaprojects Accountability and Oversight Act to impose additional federal cost, risk, and accountability requirements on transportation 'megaprojects' with an estimated total cost of $2.5 billion or more.

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ChampionedFact-checker reviewConfidence: 90%

Independently verified both cited PRIMARY sources on GovInfo (U.S. GPO); both are real, live, and directly support the outcome. H.R. 4608 (118th Congress) is titled 'Transportation Megaprojects Accountability and Oversight Act,' introduced by Rep. Mark DeSaulnier (CA) on July 13, 2023, and amends title 23 U.S.C. to add requirements for transportation projects estimated at $2,500,000,000 or more — matching the promise text exactly. DeSaulnier reintroduced the identical bill as H.R. 6435 (119th Congress) with Rep. Doug LaMalfa on December 4, 2025. The fact of reintroduction in the 119th Congress confirms the 118th Congress version never became law, and the December 2025 version is newly referred to committee and not enacted. DeSaulnier is the lead author/sponsor of both bills — well beyond a single supporting vote — so this is active championing of an as-yet-unenacted promise. Applying a party-neutral standard, a sponsor of either party who authored and twice introduced a bill that has not passed earns CHAMPIONED (+0.75), not FULL (not enacted) and not ATTEMPTED (which is for a supporting vote that failed). Confidence 0.9 reflects fully verified sponsorship and non-enactment; the only unverified detail is the exact committee-action posture.

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