The Supreme Court’s pending decision on the curtailment of the 14th Amendment threatens to replace the centuries-old doctrine of territorial birthright with a restrictive, lineage-based citizenship model that critics argue would institutionalize administrative exclusion for marginalized families. Shown here, Nadine Seigler, 60, of Waldorf, Md. protesting in front of the Supreme Court on April 1. (AP Photo/Tom Brenner)