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.

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