Nate Silver: He'll need great political instincts a la Reagan to win in 2016
                                
                                
                                    (Newser) -
                                    Hydration issues  notwithstanding, Marco Rubio is in a strong position in terms of the 2016 presidential race, writes Nate Silver in the  New York Times . Rubio is "reliably conservative," which would help him in the primaries, and his favorability ratings are solid, which would help him in...