Answer:
Senate and House of Representatives.
Step-by-step explanation:
This system is most commonly known as the Electoral College.
Currently, the victor of United States presidential election is determined by Electoral college, not a simple majority. Meaning that even if a candidate managed to obtain larger votes from the citizens, that candidate can still lose the election.
In the electoral college, each states has a pre-determined amount of votes regardless of its population. The number is identical to the number of people that represent that state in Senate and House of Representatives. In order to win the election, the candidates need to win the states with largest amount of votes rather than focusing on simple majority.
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