FiveThirtyEight's Nate Silver lays out the scenarios—and Trump's 'no longer really a long shot'
                                
                                
                                    (Newser) -
                                    A  national poll  showed Donald Trump slightly ahead of Hillary Clinton on Tuesday, though, as Nate Silver points out at  FiveThirtyEight , cherry-picking polls isn't necessarily indicative of an overall trend: Per the FiveThirtyEight model that analyzed a whole slew of surveys, Clinton appears to still be in the lead...