In December 2005 Karl was named Senior National Security correspondent. He has traveled the world for ABC News, reporting from more than two dozen countries on five continents. He reported more extensively on the situation in Darfur, Sudan, than any other network correspondent, visiting Sudan three times in 2005. He also broke several stories on Iran's nuclear program and covered the 2004 presidential elections in Russia. Before joining ABC News, he served as a congressional correspondent for CNN. In his eight years with CNN, he covered Capitol Hill, the White House and the Pentagon. While there, he reported on two Presidential elections, President Clinton's impeachment, the NATO air strikes against Yugoslavia, and congressional reaction to the September 11 terrorist attacks.
During his time on Capitol Hill for CNN, Karl was the first to report on two of the most significant congressional stories in recent years: Sen. Jim Jefford's decision to leave the Republican Party and Trent Lott's decision to step down as Senate Majority Leader. In 1998 he was the first reporter to obtain the Starr Report, one of the most sought-after political documents in recent years.
Prior to joining CNN, Karl worked as an investigative reporter for The New York Post, covering Rudy Giuliani's City Hall and the 1994 Cuomo-Pataki gubernatorial race. He has also worked as a researcher and reporter for The New Republic, where he covered a variety of issues ranging from international affairs to American politics to education.
A prolific writer, Karl's work has been published in The Wall Street Journal, The Weekly Standard, The New Republic, Reason, The Christian Science Monitor and The San Francisco Chronicle. In December 1995, his non-fiction book, "The Right to Bear Arms: The Rise of America's New Militias," was published by Harper-Collins.
Karl graduated Phi Beta Kappa from Vassar College in Poughkeepsie, N.Y., in 1990, where he was editor-in-chief of The Vassar Spectator.