Motion of Scholar Seth Barrett Tillman and the Judicial Education Project for Appointment As Amici Curiae In Support of Appellant, or in the Alternative, Motion For Leave To Participate at En Banc Oral Argument, In re Donald J. Trump, App. No. 18-2486 (4th Cir. Nov. 21, 2019) (en banc) (filed by Josh Blackman et al.), ECF No. __, 2019 WL __, .