Matthew Cooper has worked for some of America's most prestigious magazines including Time, The New Republic, National Journal, U.S. News & World Report. He wrote for Newsweek in the 1990s and rejoined the magazine in 2014. A veteran White House correspondent, he's known for his in-depth reporting and analysis from Washington. Cooper also earned national attention during the CIA leak case where his refusal to name his sources went all the way to the Supreme Court. He has appeared on "60 Minutes," "Meet the Press" and a host of broadcast and cable shows.