Ooh, that’s a big one,” Donald Trump said Monday as he signed an executive order – one of dozens during his first hours as president – to withdraw the United States from the World Health Organization.

More than half of Americans believe the U.S. benefits from its membership in the WHO. As of April 2024, 25% of U.S. adults say the country benefits a great deal from its membership, while about one-third say it benefits a fair amount. Conversely, 38% say the U.S. does not benefit much or at all from WHO membership.

The U.S. has traditionally been the most generous benefactor of the WHO. A Trump executive order to cut ties with the WHO could pose a threat to global public health.

Public health experts say U.S. withdrawal from the W.H.O. would undermine the nation’s standing as a global health leader and make it harder to fight the next pandemic.

The United States will leave the World Health Organization, President Donald Trump said on Monday, saying the global health agency had mishandled the COVID-19 pandemic and other international health crises.