Legally, can President Trump withdraw the US from membership of the WHO?

– The WHO Constitution is a treaty.
– Membership of WHO requires signing the WHO Constitution & completing state domestic ratification processes (art 4).
– US has ratified the treaty.
(1/3)
*From WHO side*
WHO Constitution does not set out an express withdrawal process. This is not unusual and it is generally accepted that States are free to withdraw from international treaties & institutions (principle of state sovereignty, enshrined in Vienna Convention)
(2/3)
PS The question of legality is only one angle (inc what it means for other int laws for #covid19: eg can be a party to the IHR but not a WHO Member).
Politics likely matters more (& extent would impact any legal review). Also, it's not clear what was intended by "terminating".
For the law wonks: here's the text of the Joint Resolution of US Congress (1948) [62 Stat 441] with the US's Understanding regarding withdrawal on ratification of WHO Constitution.

(WHA resolution accepting it: https://treaties.un.org/Pages/ViewDetails.aspx?src=TREATY&mtdsg_no=IX-1&chapter=9&clang=_en)

(thx @Nougane1)

http://loc.gov/law/help/statutes-at-large/80th-congress/session-2/c80s2ch469.pdf?fbclid=IwAR0DkbFG-oGUCBQ6Hnjg8UvJ3HCxOicsso0xnLQhZdgOSWXxxbXV5WywozU
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