The closely matched probabilities between the 450K-500K and 500K-550K turnout buckets reflect uncertainty in Montana’s open U.S. Senate contest, where Republican Kurt Alme maintains a consistent double-digit lead over independent Seth Bodnar and Democrat Alani Bankhead in recent polling. With the race rated solid Republican and opposition votes split, enthusiasm and mobilization efforts among core supporters will likely determine total ballots cast on November 3. Historical general election turnout in the state has ranged from roughly 468K in the 2022 midterm to over 612K in the 2020 presidential year, providing a benchmark that aligns with current trader consensus around the mid-400K to low-500K range. Early voting reports, weather on Election Day, and last-minute campaign activity could still shift final numbers within the favored buckets.