only one relevant here. Be watching Thursday for more.
Short summary-- Maine pays parents school vouchers to send their kids to school in areas where the state/county does not provide or contract for secondary school. Schools had to meet state standards and not be religious.
The religious part was fought over.
Now they can be religious schools.
Nemo
https://www.supremecourt.gov/Carson v. Makin (20-1088)
posted court summary
Maine's nonsectarian requirement for otherwise generally available tuition assistance payments to parents who live in school districts that do not operate a secondary school of their own violates the Free Exercise Clause of the First Amendment.