Many people lost fait in President Hoover because He didn't help or change the economy while he was in office and the Great Depression became even worse too. He became useless to American society and didn't do anything. He also lost hope in himself because he felt like he couldn't do anything for America.
The borders. It was based and developed on the idea that the cotton producing and other "Goods States" had more value with slaves. Abolishing slavery would in turn take its toll on the states.