Baltimore City Councilman Nick Mosby is running for mayor.
The freshman councilman kicked off his campaign at a rally in West Baltimore on Sunday.
A Democratic councilman for a district that encompasses the swath of West Baltimore most directly impacted by the April 27 riot, Mosby is the husband of State's Attorney Marilyn Mosby, who is prosecuting six officers charged in the death of Freddie Gray.
His entry into the race was widely anticipated after Rawlings-Blake announced she wouldn't seek re-election.
Mosby, 36, has positioned himself as a reform-minded politician.