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- 2018 elections: J. B. Pritzker (pictured) is elected to be the 43rd Governor of Illinois.
- 2018 elections: Juliana Stratton is elected to be the 48th Lieutenant Governor of Illinois.
- 2018 elections: Kwame Raoul (pictured) is elected to be the 42nd Illinois Attorney General.
- 2018 elections: incumbent Jesse White is re-elected as the 37th Illinois Secretary of State.
- 2018 elections: incumbent Susana Mendoza is re-elected as the 10th Comptroller of Illinois.
- 2018 elections: incumbent Mike Frerichs is re-elected as the 74th Treasurer of Illinois.
- 2018 Elections: The Democratic Party picks up two of Illinois's seats in the United States House of Representatives.
- 2018 elections: The Democratic Party gains a three-fifths supermajority in the state House of Representatives and maintains its supermajority in the Senate.