United States Senate

The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, and the U.S. House of Representatives is the lower house. Together, the Senate and House have the authority under Article One of the U.S. Constitution to make and pass or defeat federal legislation.

The Senate has exclusive power to confirm U.S. presidential appointments, to approve or reject treaties, and to convict or exonerate impeachment cases brought by the House. The Senate and the House provide a check and balance on the powers of the executive and judicial branches of government. The composition and powers of the Senate are established by Article One of the U.S. Constitution, which has been in effect since March 4, 1789.^[2] Each of the 50 states is represented by two senators who serve staggered six-year terms, for a total of 100 members.^[3]

From its inception in 1789 until 1913, senators were appointed by the state legislatures of their respective states. Since 1913, however, following ratification of the Seventeenth Amendment senators have been elected by statewide popular vote.^[4] The Senate has several powers of advice and consent. These include the approval of treaties, the confirmation of Cabinet secretaries, federal judges (including justices of the Supreme Court), flag officers, regulatory officials, ambassadors, other federal executive officials, and federal uniformed officers. If no candidate receives a majority of electors for vice president, the duty falls to the Senate to elect one of the top two recipients of electors to that office. The Senate conducts trials of officials who have been impeached by the House. The Senate has been considered both a more deliberative^[5] and prestigious^[6][7][8] body than the House of Representatives due to its longer terms, smaller size, and statewide constituencies, which historically led to a more collegial and less partisan atmosphere.^[9]

The Senate chamber is located in the north wing of the Capitol Building in Washington, D.C., the nation's capital. Despite not being a senator, the vice president of the United States serves as ex officio presiding officer and president of the Senate; the vice president may vote only if the Senate is equally divided. In the vice president's absence, the president pro tempore, who is traditionally the most senior member of the Senate majority party, presides over the Senate, and more often by rule allows a junior senator to take the chair, guided by the parliamentarian. In the early 1920s, the practice of majority and minority parties electing their floor leaders began. The Senate's legislative and executive business is managed and scheduled by the Senate majority leader, who, on occasion, negotiates some matters with the Senate minority leader. A characteristic practice in the Senate is the filibuster on some matters and its remedy the vote on cloture.

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