Between 2005 and 2009, Cusack wrote blogs for "The Huffington Post", which included an interview with Naomi Klein. He voiced his opposition to the war in Iraq and the Bush administration, calling the government's worldview "depressing, corrupt, unlawful, and tragically absurd". He also appeared in a June 2008 MoveOn.org advertisement, where he made the claim that George W. Bush and John McCain have the same governing priorities.