i am pretty sure the answer is C
The main way in which popular sovereignty applied to federalism is that it allowed settlers of new land to determine whether this new territory would be "slave" or "free", meaning that the states a large amount of power as well as the federal government.
The answer is His <span>appointment of three Supreme Court justices
Reagan's appointment for the supreme court justices marked a historical event in united states history because he chooses Sandra Day O'Connor, which is the first female Supreme Court Justice in history, who carried out many of Reagan's ideology.</span>
