Candidates in the 1992 United States presidential election

Thomas Richard Harkin (born November 19, 1939) is an American lawyer, author, and politician who served as a United States senator from Iowa from 1985 to 2015. A member of the Democratic Party, he previously was the U.S. representative for Iowa's 5th congressional district from 1975 to 1985. He is the longest-serving senator to spend the entire tenure as a state's junior senator.
Born in Cumming, Iowa, Harkin graduated from Iowa State University and The Catholic University of America's Columbus School of Law. He served in the United States Navy as an active-duty jet pilot (1962–1967). After serving as a congressional aide for several years, he made two runs for the U.S. House of Representatives, losing in 1972 but winning in 1974. He went on to serve five terms in the House.
Harkin won a race for U.S. Senate in 1984 by a wide margin. He was an early frontrunner for his party's presidential nomination in 1992, but he dropped out in support of eventual winner Bill Clinton. He served five Senate terms and at the end of his time in the Senate served as chair of the Senate Committee on Health, Education, Labor, and Pensions. He authored the Americans with Disabilities Act of 1990 and was its chief sponsor in the Senate. Harkin delivered part of his introduction speech in sign language, saying it was so his deaf brother could understand.On January 26, 2013, Harkin announced that he would not seek reelection in 2014.

David Ernest Duke (born July 1, 1950) is an American politician, white supremacist, antisemitic conspiracy theorist, and former grand wizard of the Knights of the Ku Klux Klan. From 1989 to 1992, he was a member of the Louisiana House of Representatives for the Republican Party. His politics and writings are largely devoted to promoting conspiracy theories about Jews, such as Holocaust denial and Jewish control of academia, the press, and the financial system. In 2013, the Anti-Defamation League called Duke "perhaps America's most well-known racist and anti-Semite".Duke unsuccessfully ran as a Democratic candidate for state legislature during the 1970s and 1980s, culminating in his campaign for the 1988 Democratic presidential nomination. After failing to gain any traction within the Democratic Party, he gained the presidential nomination of the minor Populist Party. In December 1988, he became a Republican and claimed to have become a born-again Christian, nominally renouncing antisemitism and racism. He soon won his only elected office, a seat in the Louisiana House of Representatives. He then ran unsuccessful but competitive campaigns for several more offices, including United States Senate in 1990 and governor of Louisiana in 1991. His campaigns were denounced by national and state Republican leaders, including President George H. W. Bush. He mounted a minor challenge to President Bush in 1992.
By the late 1990s, Duke had abandoned his pretense of rejecting racism and antisemitism, and began to openly promote racist and neo-Nazi viewpoints. He then began to devote himself to writing about his political views, both in newsletters and later on the Internet. In his writings, he denigrates African Americans and other ethnic minorities, and promotes conspiracy theories about a Jewish plot to control America and the world. He continued to run for public office through 2016, but after his reversion to open neo-Nazism, his candidacies were not competitive.
During the 1990s, Duke defrauded his political supporters by pretending to be in dire financial straits and soliciting money for basic necessities. At the time, he was in fact financially secure and used the money for recreational gambling. In December 2002, Duke pleaded guilty to felony fraud and subsequently served a 15-month sentence at Federal Correctional Institution, Big Spring in Texas.