In which political body does each state have the same number of votes no matter how large or small its population

the senate

Explanation:

in the Senate of the United States which is the upper house of the United States Congress Only 2 senators are elected from each state no matter what the population of the state is. each state has an equal number of representatives and the elected Senators serve for a period of six years and the vice president serves as presiding officer of the Senate.

well to answer ur question to be completly honest

united states government;