Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Elections to the United States Senate will be held on November 2, 2010, for 36 of the 100 seats in the United States Senate. A special election for a 37th seat was held in Massachusetts on January 19, 2010. Thirty-four of the seats are for six-year terms, beginning January 3, 2011, and ending January 2017. They will join Senate Class III, which traces its roots back to the Senators who served full six-year terms from March 4, 1789 to March 3, 1795. The other two races are for shorter terms: Delaware ending 2015 and New York ending 2013. After the 2008 elections and their subsequent events, the Senate is composed of 57 Democrats, 41 Republicans, and two independents who caucus with the Democrats.