Michael Isikoff is chief investigative correspondent for Yahoo News, where he digs into national security, money in politics, and whatever else strikes his fancy. Previously, he was an investigative correspondent for NBC as well as a staff writer for Newsweek and the Washington Post. Isikoff has written three New York Times best-sellers, "Russian Roulette: The Inside Story of Putin's War on America and the Election of Donald Trump" (with David Corn), "Hubris" (with David Corn), about the selling of the Iraq War and "Uncovering Clinton: A Reporter's Story."