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Senate Race Forecasts Tighten as Democrats Gain Ground Ahead of 2026 Midterms

By Drooid · · How we work

Core Event: Forecasters Shift Multiple Senate Contests Toward Democrats

Nonpartisan analysts—including the Cook Political Report and Sabato’s Crystal Ball—have moved several Senate races in Kansas, New Hampshire, North Carolina, Alaska, South Carolina and other states into a more favorable position for Democratic candidates. Recent polling shows Democratic contenders leading or within single-digit margins in contests that were previously considered solidly Republican.

Background & Context

The re-rating follows a broader political environment marked by President Trump’s low approval ratings, public fatigue with the war in Iran, and a tariff dispute with Canada. Those factors have created “persistent headwinds” for Republican candidates, prompting some to distance themselves from the White House on specific issues. Democrats see the environment as an opportunity to retake the Senate, though they acknowledge that favorable conditions alone may not guarantee a majority.

Data & Statistics

  • Maine: Washington Post-Schar School poll – Democrat Troy Jackson 50 % to 46 % over incumbent Republican Susan Collins.
  • New Hampshire: St. Anselm College poll – Democrat Chris Pappas 51 %–44 % over Republican John Sununu.
  • Kansas: New York Times/Siena poll – Republican Roger Marshall 47 % to 46 % over Democrat Adam Hamilton.
  • North Carolina: YouGov/Catawba College poll – Democrat Roy Cooper 47 % to 35 % over Republican Michael Whatley.
  • Alaska: New York Times/Siena poll of voters 50+ – Democrat Mary Peltola 50 % to 43 % over Republican Dan Sullivan.

Ad-tracking firm AdImpact reports Republicans have committed more than $51 million in future TV ad buys in Iowa, compared with roughly $5 million from Democrats. Iowa is one of only eight competitive Senate races where Democrats hold a slight edge in future ad reservations.

Official Statements & Responses

  • Susan Collins dismissed a ProPublica investigation alleging a pay-to-play scheme with defense contractor Navatek, calling the report a “partisan hit” and “offensive.”
  • Mary Peltola denied media reports of abusive behavior toward staff, attributing the claims to personal grief after the loss of her husband and mother.
  • Republican candidates in several states, including former Rep. Mike Rogers in Michigan and Rep. Ashley Hinson in Iowa, have called for an end to the war in Iran and for the tariff dispute with Canada to be resolved.
  • Vice President Kamala Vance campaigned in Alaska, while President Trump is expected to visit the state later in the week.

Criticism & Opposition

ProPublica’s investigation alleges Collins facilitated contributions in exchange for government contracts to Navatek; her campaign labeled the investigation “partisan” and highlighted the source’s criminal background. The New York Times reported accusations that former Rep. Mary Peltola engaged in abusive conduct toward staff; her campaign refuted the claims and cited personal grief as a mitigating factor.

Verbatim Quotes

  • “This race could still end up being closer than it should be given the national environment,” — Political Report’s Jessica Taylor

Conflicting Reports & Gaps

Polling on the Alaska race presents divergent pictures: a late-September Quantus Insights poll reported a tie, while the New York Times/Siena poll of older voters shows Peltola leading 50 % to 43 %. The impact of the allegations against Collins and Peltola on voter preferences remains unclear, as no post-allegation polling is cited.

What’s Next

All of the highlighted contests will be decided in the November 2026 midterm elections. Forecasters expect the aggregate performance of these competitive races to serve as a bellwether for whether Democrats can reclaim a Senate majority.