The solidly Democratic rating of the Coons-Katz contest, with forecasters projecting a wide margin in a low-salience midterm, anchors trader expectations for turnout in the mid-300,000s. Limited campaign intensity after the September 15 primaries, modest Republican fundraising, and Delaware’s small eligible voter base have produced no strong mobilization signals, keeping probabilities closely matched across the 325K–400K bands. Expanded early voting from October 22 and Democratic registration advantages support baseline participation, while the lack of competitive statewide races or national wave effects caps upside. Developments such as late October get-out-the-vote efforts, election-day weather, or shifts in national midterm momentum could separate the leading outcomes before November 3 certification.