Will the Minnesota 2026 Senate race be within 5%?

Analysis

The stronger signals — unanimous 'Likely D' ratings, a Pollsmax model at D+7.2, and a strongly Democratic midterm environment (which historically widens D margins in blue-lean states, e.g., 2018 Smith +10.6) — center the expected margin around D+7-9. A normal distribution centered ~D+7 with sd ~5.5 gives P(margin ≤5) ≈ 30-35%. Offsets to that (open seat, third-party compression under all-valid-votes denominator, MN's 2024 presidential margin of only +4.2) keep me at the upper end, ~34%.

Key Evidence

All four raters are 'Likely D'; Pollsmax models D+7.2; national environment is a D wave (Trump net -16, generic D+7). Best analogs (2018 Smith +10.6 open-ish special, Klobuchar +24 in a D wave) suggest a central margin of D+7-9, yielding P(≤5) ≈ 30-35%.

Risks

It's Nov 2026 and the race finished D+3 — a YES trade we skipped would have won because the sparse July polling average (D+3.5) was actually right, Tafoya's celebrity name recognition kept the race tight, and third-party candidates compressed the top-two gap under the all-valid-votes denominator.

Update — 2026-08-19 05:19 UTC

Updated probability: 33%. Reassessed following updated evidence.

The Minnesota Senate race features Democratic nominee Peggy Flanagan against Republican Michele Tafoya, following a primary where Flanagan secured 59% of the vote. Historical election data and proprietary signals suggest that while Minnesota has trended Democratic in recent statewide contests, the margin of victory remains sensitive to shifts in voter turnout and the specific dynamics of the general election campaign.

Update — 2026-10-17 00:20 UTC

Updated probability: 42%. Reassessed following updated evidence.

Recent polling from the Star Tribune indicates a narrow four-point gap between candidates Peggy Flanagan and Michele Tafoya, suggesting a highly competitive contest. While Democratic candidate Flanagan maintains a modest lead, reports from Twin Cities and other outlets highlight significant Republican spending and a high-profile endorsement from Donald Trump that have tightened the race in this traditionally blue-leaning state.

Update — 2026-10-20 02:25 UTC

Updated probability: 52%. Reassessed following updated evidence.

Recent polling data, including reports from the Star Tribune, indicates that the Minnesota Senate race between Peggy Flanagan and Michele Tafoya remains competitive with statistical dead heats in some surveys. While the race has been categorized as likely Democratic, the presence of tight margins within the polling error suggests the outcome remains closely contested as the election approaches.

Update — 2026-10-24 00:22 UTC

Updated probability: 44%. Reassessed following updated evidence.

Recent polling data indicates a narrowing gap between candidates Peggy Flanagan and Michele Tafoya, with several surveys showing the margin within five percentage points. This shift is occurring alongside reports of a significant Medicaid fraud scandal in the state, which has prompted analysts to adjust their race ratings to reflect a more competitive contest.

Update — 2026-10-29 03:44 UTC

Updated probability: 31%. Reassessed following updated evidence.

Recent polling data from The New York Times and Siena indicates a double-digit lead for the Democratic candidate in the Minnesota Senate race, though other aggregated averages show a narrower margin. While some surveys suggest a significant gap, the presence of varying results in public polling and undisclosed signals reflects uncertainty regarding whether the final margin will fall within a five-point range.