One of Ohio's sharpest Republican margins anchors the upper Ohio Valley
Jefferson County, a former steel-industry stronghold along the Pennsylvania border, has shifted decisively over the past two decades — its 2024 presidential margin of R+43.9 reflects a working-class electorate that moved away from its historically Democratic roots.
Contextual statewide polling for Ohio. County pages stay rooted in county returns, but live statewide polling helps frame the current cycle.