State Sen. Jim Guthrie, left, and Rep. Rick Cheatum | Courtesy photos CHUBBUCK – A senator who has served in the Legislature for 16 years has once again won his bid for re-election. By the end of the night on Tuesday, State Sen. Jim Guthrie successfully repelled a challenge from David Worley, an officer in the Idaho National Guard, for his position. Meanwhile, Rep. Rick Cheatum triumphed against two candidates challenging him for his position in…