Trump v. Barbara · ¶527

Following that victory in this Court, States worked to ameliorate the illegal-immigration problem. In 2008 alone, 13 States passed laws punishing employers for hiring unauthorized workers. Martin 298. Arizona went further in 2010 with a law that punished illegal immigrants for working or failing to register. Arizona v. United States, 567 U. S. 387, 392–394 (2012). The law also gave law enforcement the ability to arrest, based on probable cause, those suspected of violating the immigration laws, and required verification of individuals’ immigration status during stops, detentions, and arrests. Id., at 394. At the United States’ urging, the Court held that federal law largely preempted Arizona’s efforts. Id., at 400–415; but see id., at 440–441 (ALITO, J., concurring in part and dissenting in part) (arguing that the Arizona law was largely consistent with federal law).

slip opinion, revised 7/01/26
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