
In the 2024 House race for OH-1, Greg Landsman (D) defeated Orlando Sonza (R) 54.6% to 45.4%. Greg Landsman received 213,916 votes compared to 177,993 for Orlando Sonza, a 9.2-point margin that indicates a genuinely contested race.
As the incumbent, Greg Landsman benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2024 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket. This seat will likely stay on party watch lists as potentially competitive in future cycles.
In the 2022 House race for OH-1, Greg Landsman (D) defeated Steve Chabot (R) 52.8% to 47.2%. Greg Landsman received 156,416 votes compared to 140,058 for Steve Chabot, a 5.5-point margin that indicates a genuinely contested race.
Greg Landsman defeated the incumbent Steve Chabot (R), which is a significant political event — most incumbents win re-election by wide margins. This was a general election upset. As a Democrat, Greg Landsman won despite the historical midterm penalty against the president's party (Democrat Biden was in office). This seat will likely stay on party watch lists as potentially competitive in future cycles.