Candidates are still criss-crossing the state, campaigning ahead of the July 22 primary runoff. Two political hopefuls are battling for the Republican nomination for State School Superintendent, and the biggest dividing line between the two candidates is over educational standards. Next week , GOP voters will have to decide a run-off between two longtime educators—Mike Buck and Richard Woods. Buck is the Chief Academic Officer at the Georgia Department of Education under current Superintendent John Barge. Woods is a small business owner and former teacher and administrator.