Ronald Reagan (the candidate of the republican party) defeated former vice president Walter Mondale (the candidate of the democratic party) in the 1984 presidential elections.
I believe the power was separated so that no one group of people had to much power. It is the basic gest of why we separate a lot of things so that everyone has equality and all power is not going to one person or group who does things in favor of another person or group. The power was then distributed so each branch could help keep the other branch from becoming power hungry and unsociable power feigns.
