Larry Sabato: “Clinton and Trump have nearly 100% name identification and are already well-defined, for better or worse. One suspects that this year, the VP choices — unless they bring disaster — will be less influential than usual. The hoopla surrounding the announcements will suggest otherwise, but even faster than usual, the 2016 VP designates will fade from the voters’ calculus (except during the one vice presidential debate in October). Clinton and Trump are deeply polarizing, and it is difficult to believe that many people will be swayed to one side or the other — much less change sides — because of the No. 2s on the ticket.”

