Election:Tuesday, November 6, 2012
The Constitution requires that a Senator be at least 30 years old, a citizen of the United States for at least nine years, and an inhabitant of the State from which he or she is elected. A person elected or appointed to the Senate and duly sworn is a Senator.
Article I, section 3 of the Constitution requires the Senate to be divided into three classes for purposes of elections. Senators are elected to six-year terms, and every two years the members of one class—approximately one-third of the Senators—face election or reelection.