Well he made the natives slaves. He . His men raped the native American women.
It protects someone from being compelled to be o witness against himself in a criminal case
The Constitution enumerates certain powers which are reserved to the federal goverment and other powers which are delegated to the state.
Those powers which are not explicitly related in the document to any of the goverment levels will automatically be reserved to and exercised by the supreme federal goverment.