Science diplomacy takes a direct hit as U.S. withdraws from dozens of global institutions

President Donald Trump's executive order signals a further retreat from global cooperation — and a dismantling of science diplomacy infrastructure.

U.S. President Donald Trump speaks to House Republicans on Jan. 6, 2026, during their annual policy retreat in Washington. (White House)

WASHINGTON — The Trump administration’s decision to pull the U.S. out of 66 international groups and agreements is one of the biggest breaks in global science cooperation in decades.

While many people see this as a fight…