Klein's prolific blogging caught the attention of Steve Pearlstein, "The Washington Post" veteran business columnist. "I was blown away by how good he was—how much the kid wrote—on so many subjects," Pearlstein said. Pearlstein sent samples of Klein's work to managing editor Raju Narisetti. A few weeks after he heard from Pearlstein, "Washington Post" foreign correspondent John Pomfret asked Klein to have lunch with him and financial editor Sandy Sugawara. Narisetti hired Klein to be the Post's first pure blogger on politics and economics. On May 18, 2009, he began writing at the newspaper.