Change of Course ~ In the wake of the Auora, Colorado shooting, the issue of gun control is front and center.  How has this tragic event changed the tone and course of the campaigns?  To weigh in, Brian will be joined by Senior Romney Advisor Ed Gillespie, GOP Strategist Boris Epshteyn, NY Post columnist Michael Goodwin, historian Dr. Arthur Herman, former NYPD Detective Bo Dietl, and FOX's Ed Henry!