https://oregon.public.law/statutes/ors_163.275
it appears that this is the law to use against any school board / college board mandating vaxes or testing. your state may have similar.
would say that section (h) covers school board members:
Unlawfully use or abuse the person’s position as a public servant by performing some act within or related to official duties, or by failing or refusing to perform an official duty, in such manner as to affect some person adversely.