Iowa’s 2020-cycle state maps drew the headlines, but the past four years have also reshaped local power centers across the state. Polk County, home to Des Moines and more than half a million residents, used the Legislative Services Agency (LSA) for the first time to redraw its five Board of Supervisors districts. Draft lines released in February 2022 paired two long-time incumbents and, according to one UVA analysis, created two genuine toss-up seats, raising the prospect of the county’s first GOP majority in decades. Public hearings that spring highlighted concern over Des Moines high-school clusters and partisan balance, but supervisors…