Mary Anne, this amicus brief filed in the 4th Circuit Muslim ban litigation
will suggest many good possibilities:
http://www.robbinsrussell.com/sites/default/files/appellate_pdf/FILED%20CA4%20AMICUS%20BRIEF%20-%20IRAP%20v%20Trump.pdf
You might consider assigning the brief itself.
On Thu, May 11,
Students in my Con Law of Religion course want to devote a class to the
Religion Clauses issues in the “Muslim ban” cases. I would welcome suggestions
as to what materials to assign, especially to a group that may not have other
Con Law experience.