Editorial, July 20, 2018 AD The Voice’s Rap Career Emerges As Campaign’s First Hot Potato Get ready, folks. We’re going to be hearing a lot of hip-hop music between now and Nov. 6. It was generally known during the just-completed primary campaign in our 19th Congressional District that the victor, Antonio Delgado, had been involved in a rap venture in Los Angeles more than a decade ago, but details were fuzzy. And they didn’t really matter: Chances were even or…