Trader consensus assigns Randy Feenstra the strongest position in Iowa’s Republican primary for governor on June 2, driven by his profile as a sitting U.S. representative, superior fundraising, and consistent leads in available polling. The open seat following Kim Reynolds’ decision not to seek a third term has drawn four challengers, yet recent candidate forums and debates have not produced major shifts that would erode Feenstra’s edge. Zach Lahn and Adam Steen trail as the next most visible contenders, with limited statewide recognition and smaller campaign operations keeping their implied probabilities lower. Eddie Andrews and Brad Sherman remain further back amid the same compressed timeline. Upcoming early voting and final weeks of campaigning represent the primary remaining catalysts before the nomination is decided.