What might cause the New York Times editorial board to find, in New York’s suburban Westchester County, an example of “a struggle for racial integration [that] is neither bygone nor exclusively Southern� Why might “county leaders [be] stonewalling federal authorities over a longstanding housing desegregation case�More or less, a Republican executive in a deep blue district. Over the past two years, county executive Rob Astorino has garnered widespread attention and praise for defending his county against racially tinged federal overreach in a mundane affordable-housing case, while also reducing the onerous costs of county government.In recent decades, Westchester’s wealth has...