Richard Carranza

Mr. Carranza will be leaving one of the most influential education jobs in America about three years after he was appointed, and just 10 months before the end of Mr. de Blasio’s second and final term. The abrupt move comes after disagreements between NYC Mayor Bill de Blasio and Mr. Carranza over school desegregation policy reached a breaking point in recent weeks. He will be replaced by Meisha Porter, a longtime city educator and current Bronx superintendent who will become the first Black woman to lead the sprawling system, which has over 1 million students and 1,800 schools. Ms. Porter, 47, will take over as chancellor on March 15 2021. Mr. Carranza led the Houston school district during Hurricane Harvey in 2017 and previously ran San Francisco’s public schools, and was Mr. de Blasio’s second choice for a job that some education experts consider the second-most important in the country, after the federal education secretary. He was hired in a hurry, after the mayor’s first choice, Alberto M. Carvalho, the superintendent in Miami, turned down the job on national television. Mr. Carranza was appointed a few days later.