India, Nov. 6 -- Mamdani's improbable rise owes much to a circle of key advisers and political allies, many of whom share a background in progressive, left-wing politics. His senior adviser Elle Bisgaard-Church managed the primary campaign against former Guv Cuomo. Political strategist Morris Katz helped raise Mamdani's political profile while creative director Andrew Epstein was behind his social media success.P11...