**Trader consensus centers on 700K-750K total ballots as the most probable outcome for Maine’s November 3, 2026, U.S. Senate general election, reflecting historical midterm patterns in a state with consistently elevated participation.** Maine recorded 60.8% turnout of eligible voters in the 2022 midterm and averaged 64.9% across recent cycles, producing totals typically in the mid-to-high 600Ks before population and registration growth. The current tight Collins-Jackson contest, rated a toss-up by multiple forecasters, sustains broad interest and high self-reported motivation among likely voters in recent polling. Same-day registration, expanded early and absentee options, and the absence of strict ID requirements further support participation near or modestly above baseline midterm levels without reaching presidential-year benchmarks near 74%. Recent September surveys show stable engagement with no major late catalysts shifting the outlook.