Is Chris Christie a viable Presidential candidate for the G.O.P.? John Cassidy on the issues he would need to resolve before 2016: (Photo by Ida Mae Astute/ABC/Getty.)

John Cassidy: Will Romney's offshore accounts save the progressive principle?

John Cassidy on "Romney Hood": Will the campaign pay another political price for its pandering and opaqueness? (Photograph by Jae C. Hong/AP/Corbis.)

How to defeat Mitt Romney:

Ryan Lizza: Why Romney Won't Repeal Obamacare