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NATO Europe prepares for Trump pressure if Republicans lose US midterms

European NATO members are preparing for the possibility that a Republican loss in the US midterm elections could lead Donald Trump to pressure the alliance through additional troop withdrawals, reduced US funding and restrictions on support for Ukraine. Five NATO diplomats told Politico that a strong Democratic victory could reshape US foreign policy toward NATO, Europe and Kyiv.

Key points

  • US midterm elections are scheduled for November 3, 2026.
  • One-third of the Senate and the entire House of Representatives are up for election.
  • Five NATO diplomats said a Republican defeat could prompt stronger Trump pressure on the alliance.
  • Possible measures include further US troop withdrawals, reduced NATO funding and limits on the PURL weapons-purchasing program for Ukraine.
  • The review of US troop numbers in Europe is expected to be ready by December.
  • NATO allies agreed to increase defense spending to 5% of GDP by 2035.
  • Pete Hegseth could face dismissal or a congressional investigation after a major Republican defeat.

Why it matters

A change in congressional control could reshape US policy toward NATO, Europe and Ukraine. Further troop withdrawals and lower US contributions to NATO could affect European defense planning, while restrictions on PURL could reduce Ukraine's purchases of American weapons. Possible US negotiations with Vladimir Putin over Ukraine and European security could also reshape the region's security order.

What happened

European NATO members are preparing for several possible responses by the Trump administration if Republicans lose the November 3 midterms. Diplomats said Trump could reduce US contributions to NATO, restrict the PURL program through which allies buy American weapons for Ukraine, deepen ties with Russia and withdraw additional thousands of US troops from Europe. If Democrats take control of Congress, they may investigate Defense Secretary Pete Hegseth, whose strained relationship with lawmakers is partly tied to his refusal to regularly brief them on budgets and operations. His possible departure or a leadership transition could delay withdrawal decisions. Trump might also link the continued US military presence in Europe to European backing for a peace agreement on Ukraine supported by Washington.

How Ukrainian sources describe it

Ukrainian reporting highlights the possible effects on Ukraine, especially restrictions on PURL and the risk that Ukraine and European security could become bargaining elements in a broader US-Russia agreement. It also examines the political uncertainty surrounding Pete Hegseth and how his potential departure could delay decisions on reducing the US military presence in Europe.

How international sources describe it

The supplied coverage consists entirely of Ukrainian-language media outlets and therefore does not provide a separate international-source perspective for comparison. Its central focus is how European NATO members are preparing for renewed US pressure and uncertainty over American troops, alliance funding and US-Russia relations.

Background

The review of US troop numbers in Europe is expected to be ready by December. NATO allies have agreed to raise defense spending to 5% of GDP by 2035. The White House maintains that Trump has not left NATO and stresses his support for the alliance, while Montenegro's defense minister says speculation about a US withdrawal has not become reality.