Washington, D.C., Mayor Muriel Bowser delivers remarks at the Legacy Leadership Luncheon Awards during the National Urban League ‘s 2022 Conference in Washington. (Brian Stukes / Getty Images) D.C. mayor names former Homeland Security director as acting CTO Washington, D.C. Mayor Muriel Bowser has appointed Christopher Rodriguez, a former director of the city's homeland security agency, as the city's top technology official. Oct 16, 2023 By Caroline Nihill