Was mulan samurai? or was she japanese

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

The establishment of columbia as the state capital was important because a) it was located in the heart of the upcountry. b) it was located in the heart of the low-country. c) it was already established as a vital industrial center. d) it represented a compromise location central to most citizens.

How have a past president and our current president abused the powers granted to the president of the united states by the constitution and the people ?