His seventh book, published in 2008 by Viking was called Why We're Liberals: A Political Handbook for Post-Bush America. Also in 2008, Alterman published a lengthy essay in The New Yorker on the decline of American newspapers and the future role of new media news sites. His eighth book, Kabuki Democracy: The System vs. Barack Obama, was published in early 2011. It was an extension of his lengthy article published in the summer of 2010 by The Nation. Alterman's ninth book, The Cause: The Fight for American Liberalism from Franklin Roosevelt to Barack Obama (2012), is a history of postwar American liberalism co-authored with historian Kevin Mattson. Three years later, in 2015, his tenth book, Inequality in One City: Bill de Blasio and the New York Experiment was issued.
Alterman's media criticism was the subject of two of his books. He writes a political column for The Nation and a weekly column for the Center for American Progress website. In contrast to conservative media commentators, Alterman argues that the press is biased against liberals rather than biased in their favor. He was called "the most honest and incisive media critic writing today" in the National Catholic Reporter, and the author of "the smartest and funniest political journal out there," in The San Francisco Chronicle. In 2008, Alterman became a regular columnist for the Jewish magazine Moment, where he wrote regularly about Jewish issues. From 2009-2012, he was also a regular contributor to The Daily Beast.