Republican U.S. Representative David F. Emery, earning 61% of the vote to Emery's 39%. Mitchell would serve two more terms in the Senate, eventually serving as Senate Majority Leader. Maryland Incumbent Democrat Paul Sarbanes won re-election to a second term in office. He defeated the Republican former Representative from Maryland's 5th district and Prince George's County Executive Lawrence Hogan. Massachusetts Incumbent Democrat Ted Kennedy won re-election to his fifth (his fourth full) term over Republican Ray Shamie, a millionaire businessman and metalwork entrepreneur. Michigan Incumbent Democrat Don Riegle won re-election to a second term, defeating Republican challenger Philip Ruppe, a former U.S. Representative from Houghton. Minnesota Incumbent Republican David Durenberger won re-election to his first full term over Democratic businessman Mark Dayton. Dayton, 35, self-financed his campaign. Married to a Rockefeller and heir to a department store, his net worth was an estimated $30 million. Durenberger, who in 1978 and won the special election to finish the term of the late Hubert Humphrey, was largely unknown. He was considered a moderate, but supported Reagan's tax cuts. Dayton ran against Reaganomics. He has also campaigned against tax breaks for the wealthy and even promised "to close tax loopholes for the rich and the corporations—and if you think that includes the Daytons, you're right." By the end of September, the senate election already became the most expensive election of all-time, with over $8 million being spent. Dayton spent over $5 million, while Durenberger spent over $2 million. Mississippi Incumbent Democrat John C. Stennis won re-election to his seventh term over Republican Haley Barbour, a political operative who campaigned for U.S. Presidents Richard Nixon and Gerald Ford. Missouri Incumbent John Danforth, originally elected in the 1976 United States Senate election in Missouri, ran for a second term. In the general election, he narrowly defeated state senator Harriett Woods by just over a percentage point. Danforth would go on to serve two more terms in the Senate. Montana Incumbent John Melcher, who was first elected to the Senate in 1976, opted to run for re-election. He won the Democratic primary after he faced a tough intraparty challenger, and advanced to the general election, where he faced Larry R. Williams, an author and the Republican nominee, and Larry Dodge, the Libertarian nominee. Though his margin was reduced significantly from his initial election, Melcher still comfortably won re-election to his second and final term in the