Sessions v. Dimaya

Holding: 18 U. S. C. §16(b), which defines “violent felony” for purposes of the Immigration and Nationality Act’s removal provisions, is unconstitutionally vague.

Judgment: Affirmed, 5-4, in an opinion by Justice Kagan on April 17, 2018. Justice Kagan delivered the opinion of the court with respect to Parts I, III, IV-B, and V, in which Justices Ginsburg, Breyer, Sotomayor, and Gorsuch joined, and an opinion with respects to Parts II and IV-A, in which Justices Ginsburg, Breyer, and Sotomayor joined. Justice Gorsuch filed an opinion concurring in part and concurring in the judgment. Chief Justice Roberts filed a dissenting opinion, in which Justices Kennedy, Thomas, and Alito joined. Justice Thomas filed a dissenting opinion, in which Justices Kennedy and Alito joined as to Parts I-C-2, II-A-1, and II-B.

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