Hitler came at a time when the German people were desperate because of the economic situation, partially caused by the war reparations dictated by the Treaty of Versailles.
He mobilised the nation to work and pushed the blame at the seemingly richer Jews and the desperate people saw some hope in him.
Seven states had seceded from the union when Lincoln was elected.
Washington warned the country to avoid political parties, because political parties would cause disunity among the people groups. Before the nation was born, if they didn't unite, they would have lost. Washington believed that if they fell apart and had different political parties, the country would not live to the standard that they set ("United we Stand, Divided we Fall") and would become disordered (much like today)
hope this helps
The relationship and authority of states and the federal government are governed by the U.S. Constitution. The federal government is delegated certain enumerated powers while all other powers not otherwise prohibited by the Constitution are reserved to the states.