Mark Halperin, co-author of “Double Down: Game Change 2012,” swings by the Hill Center (921 Pennsylvania Ave. NE)  Wednesday in a rescheduled Roll Call Book Club event that was snowed out last month.  

Co-hosted by our partners at Hooks Books, the festivities get under way at 6 p.m. with some adult beverages and nosh, and our discussion with Halperin about the 2012 race, and possibly the 2016 one, will get started around 6:15 p.m. He’ll be on hand to sign some copies of the book until around 7:30 p.m.  

Come hungry, thirsty and curious. Free copies of the book are available while supplies last.