Question: Eleanor McGovern was the wife of the Senator who was the presidential nominee in what year

full_context: Document 1: Eleanor McGovern: Eleanor Fay Stegeberg McGovern (November 25, 1921 – January 25, 2007) was the wife of George McGovern, who served as a U.S. Senator from South Dakota from 1963–1981, and was the Democratic presidential nominee in 1972.
Document 2: Thomas Eagleton: Thomas Francis "Tom" Eagleton (September 4, 1929 – March 4, 2007) was a United States Senator from Missouri, serving from 1968 to 1987. He is best remembered for briefly being the Democratic vice presidential nominee under George McGovern in 1972. He suffered from bouts of depression throughout his life, resulting in several hospitalizations, which were kept secret from the public. When they were revealed it humiliated the McGovern campaign and Eagleton was forced to quit the race. He later became adjunct professor of public affairs at Washington University in St. Louis.
Document 3: George McGovern: George Stanley McGovern (July 19, 1922 – October 21, 2012) was an American historian, author, U.S. Representative, U.S. Senator, and the Democratic Party presidential nominee in the 1972 presidential election.
Document 4: Eugene McCarthy: Eugene Joseph McCarthy (March 29, 1916December 10, 2005) was an American politician, poet, and a long-time Congressman from Minnesota. He served in the United States House of Representatives from 1949 to 1959 and the United States Senate from 1959 to 1971. McCarthy sought the Democratic nomination in the 1968 presidential election, challenging incumbent Lyndon B. Johnson on an anti-Vietnam War platform. McCarthy would unsuccessfully seek the presidency five times altogether.
Document 5: North Dakota gubernatorial election, 1988: The 1988 North Dakota gubernatorial election took place on November 8, 1988 to elect the Governor of North Dakota. Incumbent Democratic Governor George A. Sinner was re-elected to a second term with 58% of the vote, defeating Republican nominee Leon Mallberg, a businessman and "anti-tax crusader" and his running mate Donna Nalewaja. Lloyd Omdahl, who had been appointed Lieutenant Governor of North Dakota in 1987 after the death of Ruth Meiers, was elected on the ticket. As of 2017, is the most recent election in which a Democrat was elected Governor of North Dakota.
Document 6: J. James Exon: John James "Jim" Exon (August 9, 1921June 10, 2005) was an American Democratic politician. He served as the 33rd Governor of Nebraska from 1971 to 1979, and as a U.S. Senator from Nebraska from 1979 to 1997. Exon was a Nebraska Democrat who never lost an election, and the only Democrat to hold Nebraska's Class 2 U.S. Senate seat. He was elected and re-elected governor in 1970 and 1974, elected to the Senate in 1978, and re-elected in 1984 and 1990. He is the only Nebraskan besides George Norris, the architect of Nebraska's unicameral legislature, to win five consecutive statewide elections.
Document 7: Jean Guy: Elizabeth "Jean" Guy (September 8, 1922 – July 5, 2013) was an American First Lady of the U.S. state of North Dakota. The longest serving First Lady in North Dakota's history, she served from 1961 to 1973 during the tenure of her husband, former Governor William L. Guy, the longest-serving governor in the state's history. Described as a highly influential behind the scenes, Jean Guy has been credited with persuading William Guy to run for office, reviving the Democratic Party and the North Dakota Democratic-Nonpartisan League Party in the state during the mid-20th Century.
Document 8: United States presidential election, 1972: The United States presidential election of 1972, the 47th quadrennial presidential election was held on Tuesday, November 7, 1972. The Democratic Party’s nomination was eventually won by Senator George McGovern of South Dakota, who ran an anti-war campaign against Republican incumbent President Richard Nixon, but was handicapped by his outsider status, limited support from his own party, the perception of many voters that he was a left-wing extremist and the scandal that resulted from the withdrawal of vice-presidential nominee Thomas Eagleton.
Document 9: Electoral history of George McGovern: George McGovern, a Democratic Party politician from South Dakota, was first elected to the United States House of Representatives to represent South Dakota's 1st congressional district in 1956. He was re-elected in 1958, before making an unsuccessful run for the United States Senate in 1960 against Republican incumbent Karl Earl Mundt. After serving in the John F. Kennedy administration as director of the Food for Peace program, McGovern ran again for the Senate and narrowly prevailed over appointed Senator Joseph H. Bottum. In 1968, McGovern unsuccessfully sought the Democratic Party's presidential nomination at the Democratic National Convention and was re-elected to the Senate over former Governor of South Dakota Archie M. Gubbrud. In 1972, McGovern was successful in his campaign for the Democratic presidential nomination, but lost the election in a landslide to incumbent President Richard Nixon. McGovern was re-elected to the Senate in 1974 over Vietnam War veteran Leo K. Thorsness, but lost re-election in 1980 to then-U.S. Representative James Abdnor. McGovern made a final unsuccessful run for president in United States presidential election, 1984.
Document 10: Deb Fischer: Debra Strobel Fischer (born March 1, 1951) is the senior United States Senator from the state of Nebraska. Previously, she was a two-term member of the Nebraska Legislature, representing the 43rd District. She defeated former United States Senator Bob Kerrey in the election held on November 6, 2012, and assumed one of Nebraska's two Senate seats in January 2013.
Document 11: Walter Mondale: Walter Frederick "Fritz" Mondale (born January 5, 1928) is an American politician, diplomat and lawyer who served as the 42nd Vice President of the United States from 1977 to 1981, and as a United States Senator from Minnesota (1964–76). He was the Democratic Party's presidential nominee in the United States presidential election of 1984, but lost to Ronald Reagan in a landslide. Reagan won 49 states while Mondale carried his home state of Minnesota and Washington, D.C.
Document 12: United States Senate election in Delaware, 1972: The United States Senate election in Delaware, 1972 was held November 7, 1972. Incumbent Republican United States Senator J. Caleb Boggs ran for a third term in the United States Senate. Boggs faced off against Joe Biden, a New Castle County Councilman. Though Senator Boggs was expected to easily win a third term over the then-unknown Biden, it ended up being the closest Senate election in 1972, and Biden narrowly beat out Boggs by a little over three thousand votes, winning what would be his first of seven terms.
Document 13: Hillary Clinton: Hillary Diane Rodham Clinton ( ; born October 26, 1947) is an American politician who was the First Lady of the United States from 1993 to 2001, U.S. Senator from New York from 2001 to 2009, 67th United States Secretary of State from 2009 to 2013, and the Democratic Party's nominee for President of the United States in the 2016 election.
Document 14: Hubert Humphrey: Hubert Horatio Humphrey Jr. (May 27, 1911January 13, 1978) was an American politician who served as the 38th Vice President of the United States from 1965 to 1969. Humphrey twice served in the United States Senate, representing Minnesota from 1949 to 1964 and 1971 to 1978. He was the Democratic Party's nominee in the 1968 presidential election, losing to the Republican nominee Richard Nixon.
Document 15: Daniel Patrick Moynihan: Daniel Patrick "Pat" Moynihan (March 16, 1927 – March 26, 2003) was an American politician, sociologist, and diplomat. A member of the Democratic Party, he represented New York in the United States Senate and served as an adviser to Republican President Richard Nixon.
ground_truth: 1972