The Nullifier Party was a short-lived political party based in South Carolina in the 1830s. Started by John C. Calhoun, it was a states' rights party that supported the Kentucky and Virginia Resolutions, holding that States could nullify federal laws within their borders. They had several members in both houses of the United States Congress between 1831 and 1839.
Calhoun outlined the principles of the party in his South Carolina Exposition and Protest (1828), a reaction to the "Tariff of Abominations" passed by Congress and signed into law by President John Quincy Adams.
The party supported Calhoun ally John Floyd of Virginia for president in the 1832 election, and the state legislature gave Floyd South Carolina's 11 electoral votes, even though Floyd was not a candidate and had himself unsuccessfully tried to convince Calhoun to run for president.