 After winning a crowded primary in May 2010 for Ohio's 10th House District which included incumbent Robin Belcher, he ran unopposed in the general election in what to many is considered the safest Democratic State House district.Patmon was sworn into his first term on January 3, 2011, and served as a member of the Education Committee, the State Government and Elections Committee, and the Transportation, Public Safety and Homeland Security Committee.In 2012, Patmon won reelection to his seat unopposed.