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2008 Illinois Democratic presidential primary
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June 2025
September 2023
2008 Democratic Party presidential primaries
2008 Illinois Democratic presidential primary Illinois presidential no 2004 Illinois Democratic presidential primary 2004 2012 Illinois Democratic presidential primary 2012 184 Democratic National Convention delegates(153 pledged, 31 unpledged) 2008 02 05 File:Barack Obama Senate portrait crop.jpg 150x150px Barack Obama 800080 Illinois 1,318,234 64.66% 104 File:Hillary_Rodham_Clinton-cropped.jpg Hillary Clinton D4AA00 New York 667,930 32.76% 49 280px 280px Primary results by countyObama: #e1bbe1 40–50% #cf94cf 50–60% #bd6fbd 60–70% #a949a9 70–80% Clinton: #fce0b4 40–50%#f1c98b 50–60% ID KS
The 2008 Illinois Democratic presidential primary took place on Super Tuesday, February 5, 2008, with 153 delegates at stake. Each of Illinois's 19 congressional districts was proportionally allocated to candidates who had received 15% or more of the vote in that district, totaling 100. Another 53 delegates were also proportionally allocated to candidates who had received 15% or more of the vote statewide. The 153 delegates represented Illinois at the Democratic National Convention in Denver, Colorado. Thirty-two other unpledged delegates, known as superdelegates, also attended the convention and cast their votes as well.
Polls
Statewide opinion polling for the 2008 Super Tuesday Democratic Party presidential primaries#Illinois
Polls indicated that then-U.S. Senator Barack Obama was leading then-U.S. Senator Hillary Clinton by double digits in the days before the contest in his home state of Illinois.Illinois Democratic Primary http://www.realclearpolitics.com/epolls/2008/president/il/illinois_democratic_primary-351.html Real Clear Politics 2008-02-04
Results
Results of the 2008 Democratic Party presidential primaries
2008 Illinois Democratic Presidential Primary ResultsPartyCandidateVotesPercentageDelegates Democratic Barack Obama 1,318,234 64.66% 104 Democratic Hillary Clinton 667,930 32.76% 49 Democratic John Edwards 39,719 1.95% 0 Democratic Dennis Kucinich 4,234 0.21% 0 Democratic Joe Biden 3,788 0.19% 0 Democratic Bill Richardson 3,538 0.17% 0 Democratic Christopher Dodd 1,171 0.06% 0 Totals 2,038,614 100.00% 153 Voter turnout % —
Chicago Public Radio reported on March 13, 2008, that the delegate counts were recalculated and Obama won 106 delegates to 47 for
Clinton.Clinton Loses Two Illinois Delegates http://www.wbez.org/Content.aspx?audioID=19503 Chicago Public Radio (WBEZ) 2008-04-02 https://web.archive.org/web/20080314121045/http://www.wbez.org/Content.aspx?audioID=19503 2008-03-14 dead
Analysis
April 2026
It was no surprise that Barack Obama cruised to a landslide victory in Illinois, the state he had represented in the U.S. Senate since 2005. He enjoyed massive support in his state among all demographics. According to exit polls, 57 percent of voters in the Illinois Democratic Primary were white and they opted for Obama 57–41; 24 percent of voters were African American and they, too, backed Obama 93–5; and 17 percent of voters in the primary were Hispanic/Latino and they narrowly backed Obama 50–49. Obama won all age groups but tied Clinton among senior citizens aged 65 and over. He won all voters in the state of all educational attainment levels as well as income/socioeconomic classes. He won all ideological groups and voters from both parties as well as self-identified Independents. Regarding religion, Obama won every major denomination except Roman Catholics, who narrowly backed Clinton 50-48 percent. Obama won Protestants by a margin of 58–38, other Christians 79–19, other religions 82–17, and atheists/agnostics 78–21. Additionally, 69% of young voters (ages 17-29) in this state voted for Obama.Rosentiel Tom 2008-02-11 Young Voters in the 2008 Presidential Primaries https://www.pewresearch.org/politics/2008/02/11/young-voters-in-the-2008-presidential-primaries/ 2026-09-03 Pew Research Center en-US
Obama performed extremely well statewide and racked up massive victories in his home city of Chicago as well as its suburbs and the metropolitan area. He also won Northern Illinois as well as the collar counties by substantial victories. Clinton's best performance was in Southern Illinois among the more rural and conservative counties that are majority white, although Obama still won the region as a whole.
See also
2008 Illinois Republican presidential primary
2008 United States presidential election in Illinois
References
Illinois
Democratic presidential primary
2008
Category:2008 Super Tuesday