Professor Rick Garnett, along with other constitutional law scholars, filed a brief of amici curiae (Belya et al v. Kapral) regarding church autonomy and the ministerial exception.
The brief can be read at Mirror of Justice: https://mirrorofjustice.blogs.com/mirrorofjustice/2021/09/professor-rick-garnett-filed-amicus-brief-regarding-ministerial-exception.html