The Illinois State Board of Elections decided Monday in favor of three presidential candidates, but the decision could be appealed in court.
Board members dismissed an objection to the candidacy of former Secretary of State Hillary Clinton, a Democrat.
The board also ruled that Republican U.S. Senators Marco Rubio and Ted Cruz can stay on the state ballot.
Two Illinois residents separtely raised questions about the legality of Cruz and Rubio running for president.
One of the objectors -- William Graham of Glen Ellyn -- says that while the senators are U.S. citizens, they are not natural-born citizens under the law.
"I actually like Marco Rubio and I agree with many of his policies. I can't vote for him because he's an illegal candidate. But this isn't about Marco Rubio at all. This is about the Constitution."
Ted Cruz was born in Canada to a U.S. citizen. Rubio was born in Miami to Cuban immigrants. The objectors have about a week to file an appeal in circuit court.