Both cited sources are reachable and support the FULL outcome for this promise. The PRIMARY source (official Senate roll call, 117th Congress, 2nd Session, Vote 10) confirms the vote question verbatim ("On the Decision of the Chair (Shall the Decision of the Chair stand as the Judgement of the Senate)"), dated Jan 19, 2022, tally 52 Yeas / 48 Nays, with Murkowski (R-AK) recorded voting Yea. On this vote a Yea sustained the Chair's ruling (that the 60-vote threshold applies), preserving the filibuster and defeating the effort to create a talking-filibuster carveout for the voting-rights bill; a Nay would have overturned it via the nuclear option. That is exactly the action the promise contemplated. The Wikipedia REPUTABLE_SECONDARY source corroborates: the Senate voted 52-48 against overturning the chair's ruling, with every Republican plus Manchin and Sinema opposing the nuclear option. The cited quotes appear in both sources (only trivial en-dash/date-rollover formatting differences in the secondary). The small-model note that the underlying vehicle was H.R. 5746 (a NASA leasing shell bill) is accurate and does not undercut the rating — the voting-rights package was carried on that vehicle. FULL rather than CHAMPIONED is correct: Murkowski cast the promised vote but was one of many, not the driver. The outcome does not overstate the evidence.