US presidential election in Illinois, 2012
| Party | Candidate | Running mate | Votes | Percentage | Electoral votes |
|---|---|---|---|---|---|
| Democratic | Barack Obama | Joe Biden | 3019512 | 57.60% | 20 |
| Republican | Mitt Romney | Paul Ryan | 2135216 | 40.73% | 0 |
| Libertarian | Gary Johnson | Jim Gray | 56229 | 1.07% | 0 |
| Green | Jill Stein | Cheri Honkala | 30222 | 0.58% | 0 |
| Write-ins | Write-ins | NA | 835 | 0.02% | 0 |
| Totals | 5242014 | 100.00% | 20 |
US presidential election in Illinois, 2008
| Party | Candidate | Running mate | Votes | Percentage | Electoral votes |
|---|---|---|---|---|---|
| Democratic | Barack Obama | Joe Biden | 3419348 | 61.85% | 21 |
| Republican | John McCain | Sarah Palin | 2031179 | 36.74% | 0 |
| Independent | Ralph Nader | Matt Gonzalez | 31152 | 0.56% | 0 |
| Libertarian | Bob Barr | Wayne Allyn Root | 19642 | 0.36% | 0 |
| Green | Cynthia McKinney | Rosa Clemente | 11838 | 0.21% | 0 |
| Constitution | Chuck Baldwin | Darrell Castle | 8256 | 0.15% | 0 |
| Write-Ins | Write-ins | NA | 7084 | 0.13% | 0 |
| Totals | 5528499 | 100.00% | 21 |
Delegate count for each candidate in the Illinois primaries/caucuses
Delegates Republican Party                     9546
Ted CruzDonald TrumpJohn Kasich              0204060
DelegatesDemocratic Party                     7977
Hillary ClintonBernie Sanders                   0255075100
Republicans |
| Candidates | Total Votes | % Votes | Del. |
|---|---|---|---|
| Marco Rubio | 0 | 0 | 0 |
| Ted Cruz | 434038 | 30.3 | 9 |
| Donald Trump | 556916 | 38.80 | 54 |
| John Kasich | 282874 | 19.7 | 6 |
| Ben Carson | 0 | 0 | 0 |
| Rand Paul | 0 | 0 | 0 |
| Jeb Bush | 0 | 0 | 0 |
| Carly Fiorina | 0 | 0 | 0 |
Democrats |
| Candidates | Total Votes | % Votes | Del. |
|---|---|---|---|
| Hillary Clinton | 1017006 | 50.50 | 79 |
| Bernie Sanders | 982017 | 48.7 | 77 |
US presidential election in Illinois, 2004
| Party | Candidate | Votes | Percentage | Electoral votes |
|---|---|---|---|---|
| Democratic | John Kerry | 2891989 | 54.82% | 21 |
| Republican | George W. Bush (incumbent) | 2346608 | 44.48% | 0 |
| Libertarian | Michael Badnarik | 32452 | 0.62% | 0 |
| Independent | write-ins | 4366 | 0.08% | 0 |
| Totals | 5275415 | 100.00% | 21 |