From DCist, where you can read the entire story:
D.C. Councilmember Robert White (D-At Large) is jumping into the race for mayor, marking the first prominent entrant into a high-profile contest.
Also on Wednesday, Ward 8 Councilmember Trayon White also announced his run via Instagram comments. Two-term incumbent Mayor Muriel Bowser has not officially said whether she will run for re-election, though she’s expected to do so.
“I do expect the mayor will run. She’ll announce at the appropriate time. She’s just busy running the city,” said Bill Lightfoot, a former councilmember and longtime advisor to the mayor.