Question: Which politician from the United States Senate election in Georgia, 2008 was a previous U.S. representative?

Context paragraphs:
United States Senate election in Arizona, 2012: The 2012 United States Senate election in Arizona was held on November 6, 2012, alongside a presidential election, other elections to the United States Senate in other states, as well as elections to the United States House of Representatives and various state and local elections.  Incumbent Republican U.S. Senator Jon Kyl, the Senate Minority Whip, decided to retire instead of running for re-election to a fourth term.  Republican U.S. Representative Jeff Flake won the open seat.

United States Senate elections in New York, 1845: The 1845 United States Senate special election in New York was held on January 18, 1845 by the New York State Legislature to elect two U.S. Senators (Class 1 and Class 3) to represent the State of New York in the United States Senate.  The regular 1845 United States Senate election in New York was held on February 4, 1845, to elect a U.S. Senator (Class 1) to represent the State of New York in the United States Senate.

United States Senate election in Indiana, 2010: The 2010 United States Senate election in Indiana took place on November 2, 2010, alongside 33 other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections to fill Indiana's class III United States Senate seat.  Incumbent Democratic U.S. Senator Evan Bayh decided in February 2010 to retire instead of seeking a third term shortly after former U.S. Senator Dan Coats announced his candidacy for Bayh's contested seat.  No Democratic candidate submitted enough signatures by the deadline to run, leading Democratic officials to choose U.S. Congressman Brad Ellsworth to be the nominee.  The Libertarian Party nominated YMCA instructor Rebecca Sink-Burris, who had previously run against Evan Bayh in the United States Senate election in Indiana, 1998 but with less success than in this election.  Republican nominee and former U.S. Senator Dan Coats won the open seat.

Saxby Chambliss: Clarence Saxby Chambliss (born November 10, 1943) is an American politician who was a United States Senator from Georgia from 2003 to 2015.  A member of the Republican Party, he previously served as a U.S. Representative from 1995 to 2003.

United States Senate election in New Mexico, 2012: The 2012 United States Senate election in New Mexico took place on November 6, 2012, concurrently with the 2012 U.S. presidential election as well as other elections to the United States Senate and House of Representatives as well as various state and local elections.  Incumbent Democratic U.S. Senator Jeff Bingaman decided to retire instead of running for reelection to a sixth term.  Democratic U.S. Representative Martin Heinrich won the open seat.

United States Senate election in Georgia, 2014: The 2014 United States Senate election in Georgia was held on November 4, 2014, to elect a member of the United States Senate to represent the State of Georgia, concurrently with the election of the Governor of Georgia, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.

United States Senate election in Georgia, 2008: The 2008 United States Senate election in Georgia took place on November 4, 2008.  The run off election took place on December 2, 2008.  Republican Senator Saxby Chambliss, first elected in 2002, sought re-election to his position as a United States Senator from Georgia.  He was challenged by Democratic nominee Jim Martin and Libertarian nominee Allen Buckley.  After a runoff election on December 2, Chambliss was elected.

United States Senate election in Missouri, 2012: The 2012 United States Senate election in Missouri was held on November 6, 2012, alongside a presidential election, other elections to the United States Senate in other states, as well as elections to the United States House of Representatives and various state and local elections.  Incumbent U.S. Senator Claire McCaskill was unopposed in the Democratic primary and U.S. Representative Todd Akin won the Republican nomination with a plurality in a close three-way race.  McCaskill was re-elected to a second term.

United States Senate election in Georgia, 2016: The 2016 United States Senate election in Georgia was held on November 8, 2016, to elect a member of the United States Senate to represent the State of Georgia, concurrently with the 2016 U.S. presidential election, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.  The primary election for the Republican and Democratic parties took place on May 24, 2016.

United States Senate election in Ohio, 2016: The 2016 United States Senate election in Ohio was held on November 8, 2016, to elect a member of the United States Senate to represent the State of Ohio, concurrently with the 2016 U.S. presidential election, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.  The close of registration for electors in the primary election was December 16, 2015, and the primary election took place on March 15, 2016.

Supporting paragraphs: United States Senate election in Georgia, 2008 Saxby Chambliss
Answer: Saxby Chambliss