**Democratic candidates hold polling leads across all three open Senate seats heading into the November 3 election.** In Michigan, Abdul El-Sayed leads Mike Rogers by roughly 2–3 points in recent surveys, with the race rated Lean Democratic or Toss-up. Peggy Flanagan maintains a similar edge over Michele Tafoya in Minnesota, where forecasters classify the contest as Likely or Lean Democratic. Chris Pappas leads John Sununu by about 6 points in New Hampshire, placing that race in Likely Democratic territory. These individual margins, combined with historical base rates for open seats and the limited time remaining, underpin trader consensus favoring a Democratic sweep at 66 percent while pricing the full range of split outcomes accordingly. Late-October polling shows modest tightening in Michigan but stable advantages elsewhere, with no major new catalysts reported in the past week.