What was the successful union strategy for taking vicksburg? a. to surround and bombard the city, cutting off supplies b. to avoid confederate fire by digging canals around the fortress c. to launch a naval attack against the fortress at vicksburg d. to sneak across the river and attack the city at night

i believe the answer would be 1.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.