The 1990 United States Senate elections were held on Tuesday, November 6, 1990, with the 33 seats of Class 2 contested in regular elections. Special elections were also held to fill vacancies. The Democratic Party increased its majority with a net gain of one seat from the Republican Party. The election cycle took place in the middle of President George H. W. Bush's term, and as with most other midterm elections, the party not holding the presidency gained seats in Congress. This was the first time since 1980 that any party successfully defended all their own seats, and the first time Democrats did so since 1958.
The 1984 United States Senate elections were held on November 6, with the 33 seats of Class 2 contested in regular elections. They coincided with the landslide re-election of President Ronald Reagan in the presidential election. In spite of the lopsided presidential race, Reagan's Republican Party suffered a net loss of two Senate seats to the Democrats, although it retained control of the Senate with a reduced 53–47 majority.
Lynn Morley Martin is an American businesswoman and former politician who served as the 21st United States secretary of labor from 1991 to 1993, under President George H. W. Bush. A member of the Republican Party, she previously represented Illinois's 16th congressional district in the United States House of Representatives from 1981 to 1991. Before her election to Congress, Martin served in both chambers of Illinois General Assembly; in the State House of Representatives from 1977 to 1979, as well as the State Senate from 1979 to 1980.
The 2008 United States Senate election in Illinois was held on November 4, 2008. Incumbent Democratic U.S. Senator Dick Durbin sought a third term in office and faced minimal opposition from Republican Steve Sauerberg. As expected, Durbin overwhelmingly won re-election. On the same night, fellow Democratic Senator Barack Obama was elected President of the United States, defeating Republican Senator John McCain of Arizona.
Donald Anthony Manzullo is an American businessman and politician who served as the U.S. representative for Illinois's 16th congressional district, from 1993 to 2013. He is a member of the Republican Party. From 2001 to 2007 he served as Chairman of the Committee on Small Business, and from January 2011 to January 2013 he served as Chairman of the Foreign Affairs Subcommittee on Asia and the Pacific. He was defeated in the 2012 Republican Primary on March 20, 2012.
The 2010 Illinois gubernatorial election took place on November 2, 2010. Incumbent Democratic Governor Pat Quinn was elected to a full term in office, having become governor in 2009 following the impeachment and removal of Governor Rod Blagojevich. Quinn was elected as the Democratic nominee, the Illinois Green Party nominee was attorney and 2006 nominee Rich Whitney, the Republican nominee was State Senator Bill Brady, the Libertarian Party nominee was Lex Green, and Scott Lee Cohen ran as an independent.
The 1998 United States Senate election in Illinois was held November 3, 1998. Incumbent Democratic U.S. Senator Carol Moseley Braun decided to run for re-election, despite the number of controversies that she had in her first term. Republican State Senator Peter Fitzgerald won his party's primary with a slim margin of victory. Fitzgerald won with a margin of victory of approximately 3%. He won all but five counties and became the only Republican Senate candidate to defeat a Democratic incumbent in 1998.
The 1996 United States Senate election in Illinois took place on November 5, 1996. Incumbent Democratic U.S. Senator Paul Simon chose to retire rather than seek a third term in office. In the Democratic primary, U.S. Representative Dick Durbin emerged victorious, while state representative Al Salvi won the Republican primary. Though the election was initially anticipated to be close, Durbin ended up defeating Salvi by a comfortable double-digit margin of victory, allowing him to win what would be the first of several terms in the Senate.
The 1984 United States Senate election in Illinois took place on November 6, 1984. Incumbent Republican Senator Charles H. Percy ran for re-election to a fourth term in the United States Senate. Senator Percy was opposed by Democratic nominee Paul Simon, who was a United States Congressman from Illinois's 22nd congressional district. The campaign between Percy and Simon was contentious and brutally fought, and ended up with Simon ousting Percy by fewer than 90,000 votes, which was, at the time, considered an upset. Incidentally, Percy's son-in-law Jay Rockefeller was elected Senator from West Virginia in the same election cycle.
The 1978 United States Senate election in Illinois took place on November 7, 1978. Incumbent Republican United States Senator Charles H. Percy ran for re-election to a third term in the United States Senate. Percy was opposed by Democratic nominee Alex Seith, an attorney who had been appointed to several local government positions.
The 1972 United States Senate election in Illinois took place on November 7, 1972. Incumbent Republican United States Senator Charles H. Percy sought re-election to the United States Senate. Percy was opposed by Democratic nominee Roman Pucinski, a United States Congressman from Illinois's 11th congressional district, whom he was able to defeat handily to win a second term. As of 2022, this was the last time a Republican was elected to the U.S. Senate from Illinois during a presidential election year, the last time an Illinois Republican won a Senate election by double digits, and the last time any candidate has swept every county in the state.
The 1966 United States Senate election in Illinois took place on November 8, 1966. Incumbent Democratic United States Senator Paul Douglas, seeking a fourth term in the United States Senate, faced off against Republican Charles H. Percy, a businessman and the 1964 Republican nominee for Governor of Illinois. A competitive election ensued, featuring campaign appearances by former vice president Richard M. Nixon on behalf of Percy. Ultimately, Percy ended up defeating Senator Douglas by a fairly wide margin, allowing him to win what would be the first of three terms in the Senate.
Elections were held in Illinois on Tuesday, November 2, 2010. Primary elections were held on February 2, 2010.
The 1980 United States presidential election in Illinois took place on November 4, 1980. All 50 states and The District of Columbia, were part of the 1980 United States presidential election. State voters chose 26 electors to the Electoral College, who voted for president and vice president. Illinois voters chose between the Democratic ticket of incumbent president Jimmy Carter and vice president Walter Mondale, and the Republican ticket of Ronald Reagan and running mate George H. W. Bush, as well as the independent candidacy of John B. Anderson and running mate Patrick Lucey.
A general election was held in the U.S. state of Illinois on November 6, 2018. The elections for Illinois's 18 congressional districts, Governor, statewide constitutional officers, Illinois Senate, and Illinois House were held on this date.
The 1960 United States Senate election in Illinois took place on November 8, 1960. Incumbent Democratic United States Senator Paul Douglas was reelected to a third term.
The 1974 United States Senate election in Illinois took place on November 5, 1974. Incumbent Democratic U.S. Senator Adlai Stevenson III, who was first elected in a special election in 1970, was re-elected to a full term in office, defeating Republican George Burditt by a landslide margin of nearly 800,000 votes (62%-37%).
Elections were held in Illinois on Tuesday, November 3, 1992.
Elections were held in Illinois on Tuesday, November 6, 1984.
Elections were held in Illinois on Tuesday, November 7, 1972.
