On page 102 of The Center Holds, former Newsweek columnist Jonathan Alter’s account of the 2012 election (and his second book about the presidency of Barack Obama), we learn that the president was facing a problem as his 2012 “reelect” approached: Liberals didn’t particularly care what happened to him. “Reenergizing the base was tough,” Alter writes. Fortunately, however, Obama got an assist in this task from right-wing governors such as Scott Walker of Wisconsin and John Kasich of Ohio, whose wars on public-employee unions and their pensions “proved to be powerful motivators for the base.” Clever Obama campaign people noticed