Prompted by the press release for my new book, Radical-in-Chief: Barack Obama and the Untold Story of American Socialism, as well as my Corner post, “What’s So Strange About Socialism?” a Democratic activist who writes at FrumForum under the pseudonym “Eugene Victor Debs” took a whack at me for calling Obama a socialist. I answered Debs yesterday, and today he’s is back with a challenge and a promise to respond to me at greater length. I expect our exchange will continue next week.