All three cited sources are PRIMARY and reachable, and the PARTIAL outcome is well-supported. Source 1 (Senate Roll Call 117-314, Aug 7, 2022) is the Motion to Waive Budgetary Discipline re: Amendment 5194 (Insulin), rejected 57-43 (needed 60); the quote "Cortez Masto (D-NV), Yea" appears exactly, confirming she voted to preserve the broader insulin cap that failed on the 60-vote threshold. Source 2 (IRA press release, Aug 16, 2022) contains the exact quote "the bill caps insulin at $35 a month for seniors on Medicare" and explicitly limits the ENACTED cap to Medicare seniors, supporting the "part delivered, not all Nevadans" basis of PARTIAL. Source 3 (bipartisan INSULIN Act release) verifies continued cross-aisle advocacy; its quote is essentially accurate ("I'm proud" in the source vs "I am proud" as cited — a trivial contraction difference, not fabrication). Two caveats keep confidence below the original 0.85: (1) Source 3 describes the INSULIN Act led by Shaheen/Collins/Warnock/Kennedy and does NOT mention Sen. Rosen, so the promise's specific "introduced a bill with Sen. Rosen" element is not documented by any cited source; the rationale's March 2022 Warnock/Rosen bill is not among the cited sources. (2) That gap is a promise-framing detail, not the core follow-through. PARTIAL is appropriately conservative (a real Medicare cap was enacted, the all-Americans cap failed within normal process and remains pending) and does not overstate the evidence, so the rating stands.