- Illinois in the 2000 presidential election. Gore v. Bush.
- Illinois in the 2004 presidential election. Kerry v. Bush.
- Illinois in the 2008 presidential election. Obama v. McCain.
- Illinois in the 2012 presidential election. Obama v. Romney.
- Illinois in the 2016 presidential election. Clinton v. Trump.
- Illinois in the 2020 presidential election. Biden v. Trump.
- Illinois in the 2024 presidential election. Harris v. Trump.