De Canas v. Bica

California Labor Code Ann. § 2805 (a) provides that “[n]o employer shall knowingly employ an alien who is not entitled to lawful residence in the United States if such employment would have an adverse effect on lawful resident workers.” The question presented in this case is whether § 2805 (a) is unconstitutional either because it is an attempt to regulate immigration and naturalization or because it is pre-empted under the Supremacy Clause, Art. VI, cl. 2, of the Constitution, by the Immigration and Nationality Act (INA), 66 Stat. 163, as amended, 8 U. S. C. § 1101 et seq., the comprehensive…