2000 nominee for Vice President of the United States, who would remain in office until his retirement in 2013. Delaware Incumbent Republican William Roth won re-election to a fourth term, beating Democrat Shien Biau Woo, Lieutenant Governor of Delaware Florida Incumbent Democrat Lawton Chiles decided to retire instead of seeking a fourth term. Republican U.S. Representative Connie Mack III won the open seat over Democratic Congressman Buddy Mackay. This senate election was heavily targeted by both parties. U.S. Representative Mack announced his candidacy back in October 1987. President Ronald Reagan endorsed Mack in June 1988 to allow Mack to focus on the general election, and easily won the September 6 Republican primary against U.S. Attorney Robert Merkle. In May 1988, then-Congressman MacKay announced he would run for the open seat, and defeated Insurance Commissioner Bill Gunter in a close October 4 runoff election. The general election soon became nasty, with Mackay portraying Mack as "extremist." Mack also attacked his opponent in television ads by connecting him to liberal Massachusetts Governor and Democratic presidential nominee Michael Dukakis. Mack had help from vice presidential candidate Dan Quayle. The election was so close there was a recount until Mackay conceded eight days after election day. Hawaii Incumbent Democrat Spark Matsunaga won re-election to a third term, beating Republican cattle rancher Maria Hustace. Indiana Incumbent Republican Richard Lugar was re-elected to a third term over Democratic attorney Jack Wickes. Lugar, a popular incumbent, had token opposition in this election. An April 1988 poll showed that Lugar lead 65% to 23%. By June, Lugar raised over $2 million, while Wickes raised just over $100,000. Lugar agreed to debate Wickes on September 10, 1988. Lugar won overall with two-thirds of the vote and won 91 of Indiana's 92 counties, Wickes won only the Democratic stronghold of Lake County. Maine Incumbent Democrat George J. Mitchell won re-election to a second full term over Republican Jasper Wyman, leader of Maine Christian Civic League and businessman. As of 2020, this is the last Senate election in Maine won by a Democrat. Maryland Incumbent Democratic Paul Sarbanes was reelected to a third term over Republican Alan Keyes, former Assistant Secretary of State for International Organization Affairs. Massachusetts Incumbent Democrat Ted Kennedy won re-election to his sixth (his fifth full) term over Republican Joseph D. Malone. Michigan Incumbent Democrat Don Riegle won re-election to a third term over Republican U.S. Congressman