I have to admit I didn’t know this about nullification before. Is it as simple as a state saying “no we don’t want to follow this law?” What issues if any in our current government could be handled through nullification? For example could a state with medical marijuana decide it didn’t want to follow Federal drug laws? Could a state that feels Common Core, or Federal Dept. of Education overreach (being illegal anyway via the 10th Amendment), could nullify those policies too? Can a state nullify any unconstitutional law?