Charleston County School Board member Elizabeth Moffly will try to run for the state superintendent of education for a third time, The (Charleston) Post and Courier reported.
Republican superintendent Mick Zais said he will not run again, leading to a crowded field in the election.
Six candidates have announced so far.
Moffly lost GOP primary runoff to Zais in 2010. She also ran for superintendent in 2006 and Congress in 2013.
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Other announced GOP candidates include: State Rep. Andy Patrick, Gary Burgess and Sheri Few. Democrats in the race are State Rep. Mike Anthony and Montrio Belton.