The 2008 Illinois Democratic presidential primary took place on

Super Tuesday Super Tuesday is the United States presidential primary election day in February or March when the greatest number of U.S. states hold primary elections and caucuses. Approximately one-third of all delegates to the presidential nominatin ...

, 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 The Democratic National Convention (DNC) is a series of presidential nominating conventions held every four years since 1832 by the United States Democratic Party. They have been administered by the Democratic National Committee since the 18 ...

Denver, Colorado Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...

. Thirty-two other unpledged delegates, known as

superdelegate In American politics, a superdelegate is a delegate to a presidential nominating convention who is seated automatically. In Democratic National Conventions, superdelegates—described in formal party rules as the party leaders and electe ...

s, also attended the convention and cast their votes as well.

Polls

Polls indicated that then-

U.S. Senator The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...

Barack Obama Barack Hussein Obama II (born August 4, 1961) is an American politician who was the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American president in American history. O ...

was leading then-

Hillary Clinton Hillary Diane Rodham Clinton ( Rodham; born October 26, 1947) is an American politician, lawyer and diplomat. She was the 67th United States secretary of state in the administration of Barack Obama from 2009 to 2013, a U.S. senator represent ...

by double digits in the days before the contest in his home state of Illinois.

Results

Chicago Public Radio reported on March 13, 2008, that the delegate counts were recalculated and Obama won 106 delegates to 47 for Clinton.

Analysis

It was no surprise that Barack Obama cruised to a landslide victory in Illinois, the state he had represented in the

U.S. Senate The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...

since

2005 2005 was designated as the International Year for Sport and Physical Education and the International Year of Microcredit. The beginning of 2005 also marked the end of the International Decade of the World's Indigenous Peoples, Internationa ...

. 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 White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

and they opted for Obama 57–41; 24 percent of voters were

African American African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...

and they, too, backed Obama 93–5; and 17 percent of voters in the primary were

Hispanic The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...

/ Latino and they narrowly backed Obama 50–49. Obama won all age groups but tied Clinton among

senior citizens Old age is the range of ages for people nearing and surpassing life expectancy. People who are of old age are also referred to as: old people, elderly, elders, senior citizens, seniors or older adults. Old age is not a definite biological sta ...

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 The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

, who narrowly backed Clinton 50-48 percent. Obama won

Protestants Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...

by a margin of 58–38, other Christians 79–19, other religions 82–17, and

atheists Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there no ...

agnostics Agnosticism is the view or belief that the existence of God, the divine, or the supernatural is either unknowable in principle or unknown in fact. (page 56 in 1967 edition) It can also mean an apathy towards such religious belief and refer to ...

78–21. Obama performed extremely well statewide and racked up massive victories in his home city of

Chicago Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of Unite ...

as well as its suburbs and the metropolitan area. He also won Northern Illinois as well as the

collar counties Collar counties is a colloquialism for DuPage, Kane, Lake, McHenry, and Will counties, the five counties of Illinois that border Cook County, which is home to Chicago. The collar counties are part of the Chicago metropolitan area and com ...

by substantial victories. Clinton's best performance was in Southern Illinois among the more

rural In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry are typically desc ...

and

conservative Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...

counties that are majority white, although Obama still won the region as a whole.

References

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...

Democratic presidential primary

2008 2008 was designated as: *International Year of Languages *International Year of Planet Earth *International Year of the Potato *International Year of Sanitation The Great Recession, a worldwide recession which began in 2007, continued throu ...

2008 Super Tuesday {{Illinois-election-stub

Polls

Results

Analysis

See also

References