From the early primary battles to the Super Tuesday showdown and beyond, pull back the curtain on the 2016 presidential race with Mark Halperin, John Heilemann and Mark McKinnon - and catch up on the electrifying first twelve weeks.

No president is complete without a veep. As Trump auditions Chris Christie, Mike Pence and Newt Gingrich and Clinton considers Tim Kaine, can the candidates find the right-hand man for the job who will make, not break, their campaign?