Why did the national bank become a sectional issue?

The national bank became a sectional issue primarily due to differing regional interests and economic priorities. Northern states, which were more industrialized and favored a centralized banking system for credit and investment, supported the bank. In contrast, many Southern and Western states, where agriculture predominated and distrust of centralized financial power was strong, opposed it, fearing it would benefit industrial interests at their expense. This divide intensified the growing sectional tensions leading up to the Civil War.