Gillum, who hoped to be the state’s first African American governor, conceded late Tuesday night. But by Friday, the Tallahassee mayor was reconsidering that concession, which is nonbinding.

“On Tuesday night, the Gillum for Governor campaign operated with the best information available about the number of outstanding ballots left to count,” Gillum’s campaign said in a statement Thursday evening. “Since that time, it has become clear there are many more uncounted ballots than was originally reported. Our campaign, along with our attorney Barry Richard, is monitoring the situation closely and is ready for any outcome, including a state-mandated recount.”

Fox News’ Gregg Re and Heather Lacy contributed to this report.