Donald Trump’s primetime return to CNN Wednesday for the first time since 2016 felt like a throwback: Trump with the long, twisting answers; the interviewer at times struggling to fact-check him or return his focus to the question at hand; and then, eventually, both talking over each other as Trump flings insults her way. Wednesday’s town hall in New Hampshire was the first time in years that Trump faced prolonged questioning from an outlet outside the friendly confines of conservative media outlets of his choosing. He had branded CNN “fake news" and never granted any of its journalists an interview...