In an interview six months after the election, Hillary Clinton’s campaign chairman, John Podesta, discusses the night of his candidate’s defeat, the mistakes made on the trail and Donald Trump, who he says is “unfit and unqualified” to serve as president. […] Spiegel: Mr. Podesta, the election took place only six months ago. For many, though, it seems like an eternity has passed since Barack Obama’s presidency. Are you suffering? Podesta: Yeah, Donald Trump has given a new meaning to dog years. The only constant seems to be his unpredictability. America lives in a state of constant turmoil. There were...