“Historians are loath to predict the future. It is impossible to say with certainty how Bush will be ranked in, say, 2050. But somehow, in his first six years in office he has managed to combine the lapses of leadership, misguided policies and abuse of power of his failed predecessors. I think there is no alternative but to rank him as the worst president in U.S. history.” Columbia’s Eric Foner makes the case for Dubya as the worst president ever. Also weighing in on the question: Columbia PhD (and Slate columnist) David Greenberg, Douglas Brinkley, Michael Lind, and Vincent J. Cannato. (I discussed Dubya’s ranking briefly here.)