Calhoun's opinions regarding the Tariff of 1828 reflect the political philosophy behind the ___ movement. A) Abolitionist B) Anti-Federalist C) Nullification D) Unionist

_Calhoun's opinions regarding the Tariff of 1828 reflect the political philosophy behind the Nullification movement of the Antebellum period. Because the tariff was especially harmful to the southern economy, Calhoun urged southern states to "nullify" or ignore the federal law on the grounds that it was unconstitutional.