The '' ' Illinois Democratic Presidential Primary ' '' took place on Super Tuesday , February 5 , 2008 , with 153 delegates at stake . The winner in each of Illinois 's 19 congressional districts was awarded all of that district 's delegates , totaling 100 . Another 53 delegates were awarded to the statewide winner , Barack Obama . 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
Democratic National Convention
2008 Democratic National Convention
2008 United States presidential election in Illinois