Former Vice President Kamala Harris is emerging as the leading candidate for the 2028 Democratic presidential nomination, with 50% of support among Democrats, up from 41% in March and 39% in January, according to a recent survey from the Center for American Political Studies and the Harris Poll. Potential candidates and when primary voting begins California Gov. Gavin Newsom comes in second at 22%, followed by Pennsylvania Gov, Josh Shapiro at 9…