The North was primarily fighting to abolish slavery while keeping the Union in tact. The North was upset when the South officially left the colonies, since it made them look weaker to other countries, as they themselves were on the brink of civil war. They did not want secession to be legal for this reason, but at the same time they did not agree with the South's view on slavery.
A presidential republic is one where the president is also the head of state, but he isn't involved in the legislative process and has his own executive branch. An example of this can be the government of the United States of America. Opposite of this would be a separation of powers where a president would not also be the head of the government.
<span>The event in the Jefferson presidency that changed the balance of power in American government was the case, Marbury vs. Madison. This case was the first time that the Supreme Court ruled that they could essentially overrule the presidency or congress if they felt their decisions or bills were unconstitutional. This brought about another set of checks and balances to the American government.</span>
The answer is a. Native Americans started hearding from horseback
