Republican senators, led by Sen. Ron Johnson of Wisconsin, have urged President Biden to reject agreements that would expand the World Health Organization’s (WHO) authority in the event of a global pandemic. The senators, in a letter to Biden, stressed that any such agreement would be considered a treaty, requiring the approval of two-thirds of the Senate. They emphasized that the WHO has failed to perform its basic functions and needs comprehensive reforms before considering any expansion of its authority. Biden has expressed support for the concept of a global agreement, but it’s unclear if he supports the WHO’s proposed treaty.