Voters will have their say in three important races next Tuesday for mayors in New Haven and Bridgeport and for county executive in Suffolk. The incumbents are facing serious and difficult challenges. We'll have a preview of Election Day 2019, with guests: Ebong Udoma, senior political reporter, WSHU Dan Haar, columnist and associate editor, Connecticut Hearst Connecticut Media Davis Dunavin, reporter, WSHU Karl Grossman, professor of journalism, SUNY Old Westbury; investigative environmental