Leaving means leaving cabinet altogether. If someone went from one position to another in the cabinet, they are still in the cabinet.

leave means leave for any reason. resignation, firing, impeachment, death and anything else counts as leaving.

if JD vance becomes president this counts as leaving the cabinet.

must have officially left their role before end of 2026(washington dc time). Announcement isnt enough.

https://en.wikipedia.org/wiki/Cabinet_of_the_United_States

there are 26 members of the US cabinet