In recent decades, both democratic and republican administrations have tried to guide other countries toward liberal democracy. But international relations theorist John Mearsheimer’s latest book, “The Great Delusion: Liberal Dreams and International Realties,” says that strategy has made the U.S. a “highly militarized state fighting wars that undermine peace, harm human rights, and threaten liberal values at home.” Last week at the Hoover Institution’s Washington office, Jack Goldsmith sat down with Mearsheimer to talk about the book. They talked about why administrations try to promote democracy, how that strategy has bolstered non-democratic governments, and whether a more restrained foreign policy could better serve U.S. interests.