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Story highlights

A judge will hear on Friday a lawsuit challenging Ted Cruz's eligibility to serve as president

Lawrence Joyce will have his case heard in the Circuit Court of Cook County in Chicago

(CNN) —  

A judge in Illinois on Friday will hear a lawsuit challenging Ted Cruz’s eligibility to serve as president, putting questions about the Texas senator’s status back into the news the day before the South Carolina primary.

Lawrence Joyce, an Illinois voter who has objected to Cruz’s placement on the Illinois primary ballot next month, will have his case heard in the Circuit Court of Cook County in Chicago. Joyce’s previous objection, made to the state’s Board of Elections, was dismissed on February 1.

Once again, Cruz will have to defend his eligibility to serve as president after Donald Trump revived questions about his birth in Canada. Cruz maintains he is indeed a natural-born citizen since he was born to an American mother, though it has never been tested before in court.

Trump has again threatened to sue Cruz himself.