Republican Gov. C.L. “Butch” Otter, Idaho’s chief executive since 2007, is retiring at the end of his third term. Lt. Gov. Brad Little, U.S. Rep Raul Labrador and real estate developer/physician Tommy Ahlquist emerged as the primary challengers for the nomination. State Rep. Paulette Jordan and A.J. Balukoff put their names in on the Democratic side.