Answer:
The branches of government are separated: you have the executive, the legislative, and the judicial. The legislative branch holds the responsibility of making laws for the country. The president can restrict/limit, to an extent, the power of the Congress using his ability as president to veto a bill that is produced by congress. However, Congress has the right to override any veto(excluding the "pocket veto"), but in order for this override to take place, the legislative branch must have enough votes. The Judicial branch has the ability to check both the legislative branch and the executive branch by declaring any laws produced as unconstitutional, therefore, checking those two branches, preventing overuse of power.
