D.C. Council member Jim Graham (D) (Mark Gail/The Washington Post)

Graham, who has represented Ward 1 since 1999, said he is impressed with Orange’s “engagement on the issues.”

“I feel comfortable with him,” Graham said. “I feel he has a lot to offer the council.”

D.C. Council member Vincent Orange (D-At Large) (Nikki Kahn/The Washington Post)

Graham is one two openly gay D.C. Council members.

While it’s common for council members to endorse a colleague, most members of the body are staying on the sidelines in Orange’s race against former council member Sekou Biddle, former Prince George’s County Council member Peter Shapiro and Ward 1 Advisory Neighborhood Commissioner E. Gail Anderson Holness.

But council members Tommy Wells (D-Ward 6) and David A. Catania (I-At Large) are supporting Biddle.