Article 1 of the Constitution states that the US is a bicameral (2 houses) system which consists of house of reps (based on population of a state) and Senate (equal reps for all states). Even though both houses serve the purposes of making laws. the house and senate have different jurisdiction/powers. For example, House Of Reps is in charge of taxes and impeachment of federal officials(serving as prosecutor) while Senators are in charge of the impeachment trial (final decision made by senate) basically the house tries to convince the senate to impeach a person of high power.
