Illinois was allowed to cast 21 electoral votes in 2008.
John McCain won 0 electoral votes in Illinois, losing Illinois 21 electoral votes to Obama whom received 3,419,673 votes to McCain's 2,031,527 votes.
Electoral votes are distributed based on population.
Electoral votes are distributed by state, not by county. In 2012, the state of Illinois had 20 votes.
Wisconsin had 10 electoral votes in 2004; they were cast for John Kerry (D).
3 electoral votes, which Sen. John Kerry won.
Virginia had 13 electoral votes in 2004, which they cast for George W. Bush (R).
Texas had 34 electoral votes in the 2004 election, which went to George W. Bush, Republican.
Donald Trump received 2,146,015 votes to Hillary Clinton's 3,090,729 votes, losing Illinois's 20 electoral votes.
South Dakota had three electoral votes in 2004, which it cast for George W Bush (R).
Abraham Lincoln, Republican, Illinois, 1,865,908 votes, 180 electoral college votes. John C. Breckinridge, Southern Democratic, Kentucky, 848,019 votes, 72 electoral college votes. John Bell, Constitutional Union/Whig, Tennessee, 590,901 votes, 39 electoral college votes. Stephen A. Douglas, Northern Democratic, Illinois, 1,380,202 votes, 12 electoral college votes.
In the 2012 presidential election, Illinois had 20 electoral votes.