This term in Friedrichs v. California Teachers Ass’n, the Supreme Court will consider whether ordinary public employees may constitutionally be required to pay an “agency fee,” as a condition of employment, to the union that represents them in collective bargaining. The Court established the terms of engagement in the 2014 decision Harris v. Quinn, which struck down an agency fee on narrower grounds while describing the current doctrine approving agency fees, blessed many times by the Court itself, as an “anomaly.” This Article asks whether labor unions are themselves anomalies in our legal system, particularly in their constitutional entitlements. Its answer is a qualified and complicated “yes.” Unions are indeed distinct in our legal syst...