Nate Silver: “At some point, complacency could become an issue, although it’s probably too early to worry about that. In the nearer term, I’d be worried that the race has been so volatile. Sure, things look good now. But conditions in May, and then again in July, produced a close race. Is there anything inherently preventing those conditions from arising again? I suppose I’d wonder about what Wikileaks has up its sleeve and what sort of geopolitical events could work in Trump’s favor.”