Long-time union activist Christopher Mabe is a Corrections Sergeant at the Lorain Correctional Institution. He has served as OCSEA President since 2011. With over 30 years working in Ohio's prison system, Mabe has been a long-time critic of private prisons.

He has also been an outspoken opponent of attacks on collective bargaining and led OCSEA in the successful fight to repeal Senate Bill 5.

He was re-elected to the Ohio Public Employee Retirement System (OPERS) Board in 2019, keeping labor’s seat at the pension table. He is an International Vice President of AFSCME International, an Ohio AFL-CIO Executive Board Member as well as the Chair of We Are Ohio. He also occupies the prestigious labor seat on the Ohio Department of Veterans' Services Committee. He served as OCSEA's Vice President from 2007-2011 and is a graduate of the Harvard University Trade Union Program.