Question: Jay Clark Buckey, Jr., is an American physician and astronaut who flew aboard one space shuttle mission (STS-90) as a Payload Specialist, Buckey withdrew from the race when which former Governor, from New Hampshire, entered the race? 

full_context: Document 1: Jeanie Forrester: Jeanie Forrester is Chairman of the Republican Party of New Hampshire and a former Republican member of the New Hampshire Senate, representing the 2nd district from 2010 until 2016. A businesswoman by trade, Forrester served on the Finance and Public/Municipal Affairs committees. In 2016, Forrester decided not to seek reelection to the senate and instead ran for the republican nomination for Governor of New Hampshire, ultimately losing to now-Governor Chris Sununu. Sununu later supported Forrester's successful candidacy for party chairman.
Document 2: Judd Gregg: Judd Alan Gregg (born February 14, 1947) served as the 76th Governor of New Hampshire and was a United States Senator from New Hampshire, who served as chairman of the Senate Budget Committee. He is a member of the Republican Party and was a businessman and attorney in Nashua before entering politics. He currently serves as the Chair of the Public Advisory Board at the New Hampshire Institute of Politics at Saint Anselm College. Gregg was nominated for Secretary of Commerce in the Cabinet by President Barack Obama, but withdrew his name on February 12, 2009. He would have been up for re-election in 2010, but chose not to run. In the November 2010 elections, former State Attorney General Kelly Ayotte, also a Republican, was elected to succeed Gregg in the Senate. On May 27, 2011, Goldman Sachs announced that Gregg had been named an international advisor to the firm. In May 2013, Gregg was named the CEO of the Securities Industry and Financial Markets Association, a Wall Street lobbying group. He later stepped down as CEO in December 2013 and became a senior adviser.
Document 3: James A. Pawelczyk: James Anthony "Jim" Pawelczyk (born September 20, 1960) is an American researcher of physiology and Kinesiology who flew aboard the NASA STS-90 Space Shuttle mission as a Payload Specialist.
Document 4: Sylvia Larsen: Sylvia Larsen is a New Hampshire politician who was a Democratic member of the New Hampshire Senate and its longest serving Democratic female leader. She represented New Hampshire's 15th State Senate District for 20 years, from 1994 through 2014. From 2006 through 2010, during the period when Democrats had regained control of the chamber, Larsen served as Senate President. Between 2008-2010, Larsen made history as she led the nation's first female majority legislative body with 13 women and 11 men. Legislative accomplishments include sponsoring the nation' s first tax-free college savings 529 plan, the Unique Plan, and NH's first paycheck fairness plan safeguarding equal pay for equal work.
Document 5: Olympia Snowe: Olympia Jean Snowe (born February 21, 1947) is an American politician who was a United States Senator from Maine from 1995 to 2013. Snowe, a member of the Republican Party, became widely known for her ability to influence the outcome of close votes, including whether to end filibusters. In 2006, she was named one of America's Best Senators by "Time" Magazine. Snowe was famously known for her ability to compromise and her strong sense of bipartisanship. Along with Susan Collins, she was considered one of the most moderate Republicans in office.
Document 6: Jeb Bradley: Joseph E. "Jeb" Bradley (born October 20, 1952) is an American politician and member of the Republican Party who currently serves as the Majority Leader of the New Hampshire Senate. He represents his hometown of Wolfeboro, New Hampshire and 16 other towns in east-central New Hampshire. He was formerly a member of the New Hampshire House of Representatives and served as the U.S. Representative for 2=nd
Document 7: Jake Garn: Edwin Jacob "Jake" Garn (born October 12, 1932) is an American politician, a member of the Republican Party, who served as a U.S. Senator representing Utah from 1974 to 1993. Garn became the first sitting member of the United States Congress to fly in space when he flew aboard the Space Shuttle "Discovery" as a Payload Specialist during NASA mission STS-51-D (April 12–19, 1985).
Document 8: Joseph P. Kerwin: Joseph Peter Kerwin, M.D. (born February 19, 1932), (Capt, USN, Ret.), is an American physician and former NASA astronaut, who served as Science Pilot for the Skylab 2 mission from May 25–June 22, 1973. He was the first physician to be selected for astronaut training.
Document 9: Jeanne Shaheen: Cynthia Jeanne Shaheen (née Bowers; January 28, 1947) is the senior United States Senator from New Hampshire, since 2009.
Document 10: Duane Graveline: Duane Edgar Graveline (March 2, 1931 – September 5, 2016) was an American physician and NASA astronaut. He was one of the six scientists selected in 1965, in NASA's fourth group of astronauts, for the Apollo program. He was best known for being immersed in water for seven days as part of his zero gravity deconditioning research while working as a United States Air Force (USAF) research scientist. He was consultant to magician David Blaine for Blaine's week of water immersion in 2006, correctly predicting Blaine's profound weakness from deconditioning.
Document 11: Bill Nelson: Clarence William Nelson II (born September 29, 1942) is an American politician and a member of the Democratic Party who serves as the senior United States Senator from Florida, in office since 2001. Nelson began his career in the Florida House of Representatives, where he served from 1972 to 1978. He then served in the United States House of Representatives from 1979 to 1991. In January 1986, Nelson became the first sitting member of the United States House of Representatives to fly in space. He flew as a Payload Specialist on the Space Shuttle "Columbia".
Document 12: Jay C. Buckey: Jay Clark Buckey, Jr. (born June 6, 1956, in New York City) is an American physician and astronaut who flew aboard one space shuttle mission (STS-90) as a Payload Specialist. Buckey briefly ran for the Democratic nomination to challenge New Hampshire Senator John E. Sununu, a first term Republican, when he was up for re-election in 2008. Buckey withdrew from the race when former Governor Jeanne Shaheen entered the race.
Document 13: Michael Barratt (astronaut): Michael Reed Barratt (born April 16, 1959) is an American physician and a NASA astronaut. Specializing in aerospace medicine, Barratt served as a flight surgeon for NASA before his selection as an astronaut, and has played a role in developing NASA's space medicine programs for both the Shuttle-Mir Program and International Space Station. His first spaceflight was a long-duration mission to the International Space Station, as a Flight Engineer in the Expedition 19 and 20 crew. In March 2011, Barratt completed his second spaceflight as a crew member of STS-133.
Document 14: New Hampshire Senate: The New Hampshire Senate has been meeting since 1784. It is the upper house of the New Hampshire General Court. It consists of 24 members representing Senate districts based on population. Currently, there are 14 Republicans and 10 Democrats.
Document 15: Scott Kelly (astronaut): Scott Joseph Kelly (born February 21, 1964 in Orange, New Jersey) is an engineer, retired American astronaut, and a retired U.S. Navy Captain. A veteran of four space flights, Kelly commanded the International Space Station (ISS) on Expeditions 26, 45, and 46.
ground_truth: Jeanne Shaheen