The doctrine asserting the right of states to ignore unconstitutional laws of congress is called

Nullification is the right answer.

Nullification is a legal provision in the constitution of the U.S, that asserts that a state has the power to nullify, or cancel, any central law which that state has deemed undemocratic with regard to the constitution of the United States. This theory of nullification is based on a belief that as creators of the Federal Government, the states have the ultimate authority to define the limits of the power of that government.

Nullification is the doctrine that argued.

Explanation:

the reform movements that arose during the antebellum period in america focused on specific issues: temperance, abolishing imprisonment for debt, pacifism, antislavery, abolishing capital punishment, amelioration of prison conditions (with prison's purpose reconceived as rehabilitation rather than punishment), the humane treatment of animals, the humane and just treatment of native americans, the establishment of public institutions for the care of the destitute, orphans, blind, and mentally ill, the establishment of public schools, the abolition of tobacco use, vegetarianism, health reform, homeopathic medicine, woman's rights (including, at first, especially the establishment of a woman's right to own property apart from her husband and her right to sue for divorce), and the amelioration of labor conditions (including higher pay, the right to form unions, the right to strike, and the demand for limits on the number of work hours, and safe working conditions).

explanation:

bujías y una hora antes y no me parece muy difícil