Maine Gov. Janet Mills, 77, won't commit to release her medical records in her 2026 bid for Senate, Axios has learned, as her Democratic primary opponents call for a new generation of leadership in Congress.

Why it matters: If she wins, Mills would be the oldest first-term senator elected in U.S. history — 79 when she'd take office in January 2027. Congress now has more members over 70 than any time since at least 1950, increasing scrutiny on their fitness for office. • Three members of Congress have died in office this year, and others appear to be in failing health. • Mills — who has the backing of Senate Minority Leader Chuck Schumer, 74 — is stepping into a generational battle within her party, as young progressives seek to push out the older establishment in the aftermath of form

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