On April 3, 2026, Sen. Mitch McConnell (R-KY) joined Democratic lawmakers in publicly defending U.S. NATO membership after President Trump indicated he was considering withdrawing from the alliance. McConnell — chair of the Senate Appropriations Subcommittee on Defense — co-authored a statement with Democratic Sen. Chris Coons declaring: "Alliance disputes are as old as the alliance itself" and "Americans are safer when NATO is strong and united."
Related Vote
The Senate also delivered a bipartisan rebuke to Trump by voting to terminate the national emergency powers he had used to impose sweeping tariffs on Brazil. Five Republican senators — Collins, Murkowski, Tillis, McConnell, and Paul — joined all Democrats in the vote, reflecting growing GOP unease with the economic impacts of the administration's tariff regime.
Context
McConnell's defection on NATO was notable for two reasons. First, McConnell had been the most consequential Republican enabler of Trump's first-term agenda — engineering the Supreme Court supermajority through the Garland blockade and nuclear option, voting to acquit Trump twice while acknowledging his guilt, and facilitating the legislative agenda. His willingness to publicly break on NATO — in the middle of a war — signaled the limits of GOP accommodation.
Second, McConnell had announced in February 2025 that he would not seek reelection in 2026, freeing him from primary electorate pressure. His defense of NATO represented the stance of a Republican foreign policy establishment that had been sidelined since 2016 but retained institutional presence in the Senate.
The NATO dispute also intersected with the Iran war: European allies were being asked to support military operations they had not authorized while simultaneously absorbing the economic costs of the Strait of Hormuz disruption. Iran's decision to allow French ships through Hormuz the same day further demonstrated how the war was straining rather than strengthening Western solidarity.