Verified all three cited sources by fetching them; all are reachable and support the outcome, and the CHAMPIONED leadership bar is met. The promise was to introduce legislation eliminating Railbelt transmission tariffs that block lowest-cost power. Source 1 (Dunleavy's own office) documents that his administration introduced HB 307 and companion SB 217 to "eliminate these tariffs and transform the system into a public highway rather than a series of toll roads" — the rating's quote is verbatim. Source 2 (Dunleavy's office) confirms he signed HB 307 into law on 7/31/2024 and that it "eliminates wheeling rates on Alaska's Railbelt, allowing the lowest cost power to be distributed throughout the grid" — verbatim confirmed. Source 3 (Alaska Energy Transparency Project) confirms HB 307 passed, was signed 7/31/2024, creates a Railbelt Transmission Organization, and replaces "wheeling fees" with an Open Access Transmission Tariff — substance confirmed (though the rating's rendering of this quote is a paraphrase; corrected to verbatim below). Leadership was independently corroborated: HB 307 was a governor's/administration bill (Office of the Governor policy advisor Andrew Jensen presented it to House Finance; the office release states Dunleavy "introduced" the legislation), and he signed it into law. Dunleavy therefore authored/introduced, publicly championed, and enacted the measure — exceeding the mere "introduce" promise — so CHAMPIONED is warranted over FULL. Confidence trimmed slightly from the original 0.97 because source 3's quote was a paraphrase rather than verbatim, but the substance is fully supported by both primary sources.