The U.S. Senate is one of the two chambers of the United States Congress, responsible for making federal laws. Comprising 100 senators, two from each state, the Senate plays a crucial role in reviewing legislation, confirming presidential appointments, and ratifying treaties. Senators serve six-year terms, with elections staggered every two years. This structure ensures continuity within the Senate while allowing for periodic changes in representation. The Senate also has unique powers, such as conducting impeachment trials for federal officials, making it a vital component of the U.S. political system.