The entire doctrine of Nullification is comprised in a sentence uttered by Vice-President Calhoun, the head of that party in the South, before the Senate of the United States, in the year 1833:
Nulifikazioaren doktrina osoa, 1833an Estatu Batuetako Senatuaren aurrean Mr. Calhoun-ek, hegoaldeko nulifikatzaileen ageriko buruzagiak, adierazitako esaldi batean aurkitzen da: