All four cited sources are reachable and every quoted statement appears verbatim on the corresponding page; each supports the claimed outcome for this "keep fighting to lower prescription drug costs" promise. Leadership is genuine on the core promise: two of the three Rosen releases are titled "Rosen, Cornyn Introduce" (Reducing Drug Prices for Seniors Act, 7/31/2025) and "Rosen, Curtis Introduce" (Expanding Access to Affordable Prescription Drugs and Medical Devices Act, 12/4/2025), where she is a named co-lead sponsor introducing bipartisan legislation specifically to lower drug costs — that is sponsored/led action, not merely a supporting vote. The 1/30/2026 release confirms the Medicare-negotiation pillar ("15 more medications now qualify for Medicare price negotiations thanks to the law I helped pass"). On the two named sub-components she is a supporter/cosponsor rather than lead author — the Shaheen release lists her among senators who "support" the bipartisan INSULIN Act ($35 insulin cap), and she helped pass (voted for) the IRA's Medicare-negotiation authority. CHAMPIONED is justified because the umbrella promise to keep fighting to lower drug costs is squarely something she led on via the two co-introduced bills; confidence held at 0.8 because the insulin and negotiation sub-pillars are cosponsor/voter-level rather than lead-authored, exactly as the original rationale disclosed. No fabricated quotes, no unreachable sources, no outcome overstatement.