According to the source, Senator Cynthia Lummis announced she will not run for reelection, signaling the loss of a prominent pro-crypto lawmaker after her current term ends, source: social media post dated Dec 20, 2025 relaying the announcement. Lummis is a lead sponsor of the bipartisan Lummis–Gillibrand Responsible Financial Innovation Act, which outlines SEC and CFTC jurisdiction over digital assets and a market-structure framework, source: Congress.gov records for the Responsible Financial Innovation Act showing sponsorship by Senators Lummis and Gillibrand. She has publicly disclosed personal Bitcoin holdings and consistently advocated for clear stablecoin and broader digital asset rules, reinforcing her standing as a crypto policy champion, source: U.S. Senate financial disclosure reports and Congress.gov bill summaries for the RFIA. Her planned departure would remove an original RFIA sponsor from the next Senate, affecting the count of primary backers for digital asset legislation that traders monitor to gauge U.S. crypto regulation progress, source: Congress.gov sponsorship lists and legislative tracking records. Traders should track the RFIA docket and any stablecoin-specific bills on Congress.gov to assess the policy calendar shaping exchange compliance, token listings, and institutional participation in U.S. crypto markets, source: Congress.gov bill dockets for digital asset and stablecoin legislation.