[3] Illinois, along with Pennsylvania, elects delegates in party by congressional district, separately from the statewide preference vote.

The case, Anderson, Holley, Hickman, et al. v. Trump, was heard by the Illinois State Board of Elections.

[6] On January 30, 2024, the Board of Elections decided unanimously that it did not have jurisdiction, and that the power to determine constitutional eligibility rests with the courts.

[7] The challengers then brought their case to the Cook County Circuit Court to get a ruling on Trump's ballot eligibility.

[9] On February 28, 2024, former President Donald Trump was removed from the state ballot by Cook County Circuit Judge Tracie Porter.