Marvin L. "Doc" Cheatham Sr.

Marvin L. "Doc" Cheatham Sr. (Algerina Perna / Baltimore Sun / June 16, 2009)

Longtime Baltimore civil rights leader Marvin L. "Doc" Cheatham will make it official Tuesday night that he is running for the House of Delegates from a Baltimore district represented by three incumbent Democrats.

Cheatham, former president of the Baltimore chapters of the NAACP and Southern Christian Leadership Conference, will file as a Democrat in the 40th District in West and Northwest Baltimore. He said it will be his second foray into elective politics, having run for and won a seat on the Democratic State Central Committee for the 44th District in 2010. He resigned in 2012 when he moved to the 40th.

The three-member 40th is represented by Dels. Frank M. Conaway Jr., Barbara A. Robinson and Shane Z. Tarrant. If all file for re-election, they would meet Cheatham in the June 24 primary.

Cheatham, who formerly served on the city elections board, said he plans to run because "we need better representation in the 40th District."