Grist: According to a new poll, Hillary Clinton has little to lose with swing state voters, and much to gain, by telling America that shes going to make ambitious clean energy goals a part of her platform specifically, 50 percent renewable energy by 2030, and 100 percent by 2050. Over two-thirds of the swing state voters who were polled thought these goals were a great idea. So, perhaps not coincidentally, does the polls sponsor, NextGen Climate Action, the environmental lobby backed by Tom Steyer,...