Brief for Scholar Seth Barrett Tillman and the Judicial Education Project as Amici Curiae in Support of the Defendant, Senator Richard Blumenthal v. Donald J. Trump, President of the United States of America, Civ. A. No. 1:17-cv-01154-EGS (D.D.C. Sept. 19, 2017) (Emmet G. Sullivan, J.) (filed by Professor Josh Blackman and Robert W. Ray, Esq.)