David Corn is an American journalist and author, known for his work as the Washington, D.C. bureau chief for Mother Jones, a progressive magazine. He has written extensively on politics, national security, and investigative reporting, contributing to various publications over the years. Corn gained prominence for his reporting on the Plame affair, which involved the outing of CIA officer Valerie Plame. He is also recognized for his commentary on political issues and has authored several books, including works that explore the intersection of politics and media in the United States.