Based on what you have learned, why would victories in the western theater have been important to the Union? The Union was close to winning the war and only needed a few more victories.

Southern morale was low, and Union wins might convince them to surrender.

The Confederacy had already won the war in the East.

Union morale was low after its many losses, and victories would raise that morale.

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.

b - those executed came from every social and economic class