The American Colonization Society's proposed the migration of free American backs to the coast of Africa. African American denounced it as the measure represent an escape to slavery instead of avoiding it. Secondly, the majority of the leaders of the society were southerners who want to get rid of free slaves who has seen as a threat to property in the south. Tropical disease was another major problem that was ignored and poor blacks were migrated there.
Deserts are characteristically deserted and lack an abundance of water, so this dry climate provides a fitting geographic theme for a group of people that learn to survive with a limited water supply.
One of the rights of congress is the right to impeach the president if they think he is to tyrannical. Checks and balances itself though is an example of separation of powers