By Nandita Bose and James Oliphant NEW YORK (Reuters) -Democratic presidential candidate Kamala Harris appeared on the “Saturday Night Live” TV comedy show on Saturday, adding a surprise jolt to the U.S. presidential election just three days before her showdown with Republican Donald Trump. Harris portrayed herself, appearing in a mirror opposite the actor who plays her on the show, Maya Rudolph, who was nervously preparing for a campaign speech. Dressed identically in a black […]