Rep. Randy Feenstra was seen as the GOP favorite for Iowa governor. But NBC News analysis of election data from 2026 and 2020 shows how Zach Lahn exposed a weakness in his district.Rep. Randy Feenstra speaks to guests during a campaign event at the Silo City farm near Sioux Rapids, Iowa, in May. Scott Olson / Getty ImagesJune 3, 2026, 3:55 PM EDTRep. Randy Feenstra, R-Iowa, seemed to have every edge in his bid for the Hawkeye State’s Republican nomination for governor on Tuesday, from superior fundraising to President Donald Trump’s endorsement. But he committed the cardinal sin of campaign politics: He didn’t guard his own backyard.Just a moment.We are getting your experience ready.