Who came up with the theories of mullification?

The theories of nullification were primarily developed by John C. Calhoun, a prominent American politician and theorist from South Carolina. He argued that states had the right to nullify Federal Laws they deemed unconstitutional, based on the principles of states' rights and the compact theory of the Constitution. This idea gained prominence in the early 19th century, particularly during the Nullification Crisis of the 1830s.