President Donald Trump signed an executive order that would begin the process of removing the U.S. from the World Health Organization. Here's why.

President Donald Trump announced Monday he is withdrawing the US from the World Health Organization, a significant move on his first day back in the White House cutting ties with the United Nations’ public health agency and drawing criticism from public health experts.

Experts have also cautioned that withdrawing from the organization could weaken the world’s defenses against dangerous new outbreaks.