https://www.supremecourt.gov/opinions/19pdf/19-67_n6io.pdfsupreme court also struck down the 9th circuit on a case over immigration advocates and the 1st amendment
rather than rule on the substance, they ruled that the 9th circuit itself had usurped the case and effectively acted as the lawyers and the judges argued their own statutory objection that wasn't presented by either side of the case,
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Instead of adjudicating the case presented by the parties, the appeals court named three amici and invited them to brief and argue issues framed by the panel, including a question Sineneng-Smith herself never raised earlier: “[W]hether the statute of conviction is overbroad . . . under the First Amendment.” App. 122–124. In the ensuing do over of the appeal, counsel for the parties were assigned a secondary role. The Ninth Circuit ultimately concluded, in accord with the invited amici’s arguments, that §1324(a)(1)(A)(iv) is unconstitutionally overbroad. 910 F. 3d 461, 485 (2018). The Government petitioned for our review because the judgment of the Court of Appeals invalidated a federal statute. Pet. for Cert. 24. We granted the petition. 588 U. S. ___ (2019). As developed more completely hereinafter, we now hold that the appeals panel departed so drastically from the principle of party presentation as to constitute an abuse of discretion. We therefore vacate the Ninth Circuit’s judgment and remand the case for an adjudication of the appeal attuned to the case shaped by the parties rather than the case designed by the appeals panel.