The US Senate is a prominent Washington D.C.-based governmental body, which serves as the upper house of the bicameral United States Congress. Its primary mission is to legislate, providing a crucial check and balance on the executive and judicial branches. Key activities include passing federal laws, confirming presidential appointments, approving treaties and conducting impeachment trials. With two senators representing each state for staggered six-year terms, it ensures continuity and stability in the legislative process, playing a vital role in shaping national policy.