A second Democratic primary debate is coming to Hall County, this one to help voters decide who will challenge U.S. Rep. Doug Collins, R-Gainesville, in November for his seat representing Georgia’s 9th District. Gainesville teacher Josh McCall and Clayton Army veteran David Cooper are running for the Democratic nomination in the 9th District, which covers Northeast Georgia from the western edge of Fannin County in the northwest to Elbert County on the South Carolina border.