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.

Public health experts warn that pulling out of WHO, which Trump attacked for its response to COVID-19, will leave Americans more vulnerable to health threats.

As he signed an executive order, President Donald Trump said that the World Health Organization had "ripped us off."

President Donald Trump used one of the flurry of executive actions that he issued on his first day back in the White House to begin the process of withdrawing the U.S. from the World Health

How America's legacy of combating threats to global health security - including at home in the United States - is at risk.

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.

President Donald Trump is acting on his campaign promises at the fastest clip in modern memory — sending almost hourly shockwaves through the government, the legal system, the science community and around the world.

President Trump is rolling back Biden healthcare policies, such as expansions to the Affordable Care Act – a move Democrats described as an "attack" on the federal program.

Donald Trump calls for immediate resolution to Russia-Ukraine war, urges Russia for quick resolution to the conflict. Trump warns of potential taxes, tariffs, and sanctions on Russian goods sold to the US and allied countries if no peace deal is reached.

U.S. President Donald Trump has signed a blizzard of executive orders and taken other actions since being sworn in on Monday on scores of issues that could have an impact on the lives of millions of Americans and non-citizens.

He could turn his rash action into a negotiation that might strengthen global health.