All three cited sources were checked; two fetched directly and the third corroborated via web search after congress.gov returned HTTP 403 (bot-blocking, not a dead/fabricated link). (1) The Van Hollen press release (senate.gov) confirms the IDEA Full Funding Act (S.2217) was introduced July 10, 2023 by Van Hollen as lead sponsor and lists "Senators Maggie Hassan (D-N.H.), Tammy Baldwin (D-Wis.), Richard Blumenthal (D-Conn.)..." as cosponsors — establishing Hassan is a cosponsor, NOT the author, so no leadership (correctly NOT CHAMPIONED). (2) The Hassan press release (senate.gov, April 22, 2025) confirms she is one of 30-plus cosponsors of the reintroduced bill and contains the cited quote verbatim: "IDEA funding makes a difference for families across New Hampshire by helping fund the support and resources that allow students with disabilities to succeed [academically and thrive]" — the rating's truncation is faithful. (3) The congress.gov S.2217 latest-action quote — "Read twice and referred to the Committee on Health, Education, Labor, and Pensions" — and the fact the bill was not enacted were confirmed via web search of congress.gov's own listing; the quote is genuine. The promised OUTCOME (advancing the bill / fully funding special education) was not achieved: the bill stalled in committee, was never marked up or voted on, and the 40% federal IDEA commitment remains unmet (funding ~12%). Hassan did the part within her individual power (repeated cosponsorship plus public advocacy across two Congresses) but the collective outcome failed. PARTIAL is correct and appropriately conservative — it neither overstates (no CHAMPIONED, no FULL) nor understates the follow-through. No grounds for UNRATABLE: quotes are real, sources support the stated outcome, and the outcome does not exceed the evidence.