Election data savant Nate Silver said over the weekend that Vice President Kamala Harris passed up a “big opportunity” with her choice of running mate, a move which polls indicate could cost the Democrat a crucial swing state. The FiveThirtyEight founder wrote in his “Silver Bulletin” newsletter Sunday that the 59-year-old “blew one big opportunity to tack to the center with her selection of [Minnesota Gov.] Tim Walz rather than [Pennsylvania Gov.] Josh Shapiro.” Silver was responding to a New York Times/Siena College poll which showed nearly half (47%) of likely voters considered Harris too liberal, a reflection of her...