Exclusive: Rep. Tom Tiffany Presents Bill to Block Biden from Unilateral Approval of W.H.O. Pandemic Treaty
Rep. Tom Tiffany (R-WI) introduced a bill to ensure that the White House must recognize any W.H.O. pandemic agreement to have Senate approval.
All treaties need to be ratified by the Senate (2/3 iirc). As usual they use illusions to get around it.
And in the past with JCPOA and Iran nuclear deal:
Treaties cannot override the first eight amendments in the Bill of Rights or the Constitution's other specific exceptions to federal authority (such as the ban on taxing exports). Those provisions were adopted to deny the federal government authority it otherwise might have. A treaty cannot override those limits.
EDIT: Nor can any other agreement. The Constitution prohibits such.