Kosher 4 Passover in DC??
The next two days are yomtov (holiday). You'd be hard pressed to find a kosher restaurant open for them for a regular meal. There may be some restaurants that are open for prepaid meals (Darna in NYC used to be). If you are looking for a real K for P meal, I'd check out the Hillels (GW, Georgetown, U Maryland). Otherwise, perhaps you can find a kosher-style or Passover-friendly restaurant.