Here is the Motion for Leave to File in Iowa v. Arizona.
A couple quick final points on the interim docket: 1) One criticism of the Court's practices is the absence of an opinion explaining the stay, especially when the lower court applied existing law but SCOTUS is looking to change the law. It was clear that Humphrey's Executor was not long for the world when the Court granted a stay even though the firing was unlawful under HE. 2) This, of course, undermines law declaration, because the lower courts do not know what to do. 3) Justice Kavanaugh wrote a concurring opinion in CASA (not in your excerpt) praising this practice of increased-and-earlier SCOTUS involvement in major constitutional cases involving important new federal laws or regulations.
Prep all of Reviewing State Courts. This will take us through tomorrow and into next Tuesday. As you look at § 1257 (both current and pre-1988), identify five classes of cases SCOTUS can hear (3 express, 2 by implication). Pre-1988, SCOTUS jurisdiction (or its nature) depended on the outcome in state court; why draw distinctions, given the purposes of SCOTUS review?