With less than two months before the May 20 primary election, five Republican candidates vying for the right to challenge a formidable incumbent Democratic congressman will kick off a series of debates Monday in Statesboro.All five — Rick Allen, Delvis Dutton, John Stone, Diane Vann and Eugene Yu — have confirmed they will participate in the forum, scheduled for 6:30 p.m. in the auditorium of the Joseph E. Kennedy Building at Ogeechee Technical College. The debate will be preceded by a meet-and-greet, at 5:30 p.m. in the lobby, said Mike Welsh, the chairman of the 12th District Republican Party.Statesboro City Councilman Phil Boyum will serve as the moderator. Each candidate will have two minutes for opening and closing remarks.