In the low-salience 2026 Delaware U.S. Senate contest, incumbent Democrat Chris Coons faces Republican Michael Katz in a race rated Solid Democratic by forecasters, with trader consensus clustering around 325K–425K total votes cast. The September 15 primary just days away and the general election two months out have produced limited campaign intensity and no major mobilization signals. Historical midterm turnout patterns, Delaware’s modest eligible voter pool of roughly 771,000 registered voters, and the absence of competitive statewide races or national flashpoints support baseline expectations near or modestly above 2022 levels. Expanded early voting and Democratic registration advantages provide a floor, while primary results, election-day weather, or late national developments could shift probabilities by altering enthusiasm or participation in key counties.