In response to the criticisms about Senator Bernie Sanders's use of private air travel to support Hillary Clinton during the 2016 election, Michael Briggs, a spokesperson for the senator’s 2016 presidential campaign, fired back at Clinton and her staff, calling them “total ingrates” and “as**###$.” “You can see why she’s one of the most disliked politicians in America. She’s not nice. Her people are not nice,” he told Politico. “[Sanders] busted his tail to fly all over the country to talk about why it made sense to elect Hillary Clinton and the thanks that [we] get is this kind of...