Democratic candidates hold polling leads in all three open 2026 Senate seats, with New Hampshire showing the clearest advantage for Chris Pappas over John E. Sununu. Michigan’s Abdul El-Sayed edges Mike Rogers by roughly three points on average, while Minnesota’s Peggy Flanagan maintains a similar narrow margin over Michele Tafoya. These margins, drawn from recent surveys through mid-October, position a Democratic sweep as the highest-probability outcome in trader assessments. Competitive dynamics in Michigan and Minnesota, including primary aftereffects and open-seat vulnerabilities, keep alternative combinations such as a Republican pickup only in Michigan at notable but secondary odds. National polling trends and state-specific turnout factors continue to shape positioning ahead of Election Day.