King is CNN's chief national correspondent and anchor of Inside Politics, an hour-long program featuring a panel of top-tier political correspondents that airs weekdays at noon.

An award-winning journalist, King has covered the past nine presidential elections and has reported from all 50 states and more than 70 countries.

King is pivotal to the network's daily reporting and breaking news coverage and participates in major events such as CNN's 2020 Election Night in America coverage. Past campaign experience includes moderating three presidential primary debates in 2012. This past election was the fourth cycle in which King's reporting included use of CNN's Magic Wall, which was first introduced in 2008 and was also integral part of the network's Emmy award-winning 2012 election night coverage.

King joined CNN in May 1997 and became chief national correspondent in April 2005. He served as CNN's senior White House correspondent from 1999 to 2005, where his duties included reporting on the Iraq war and the September 11th terrorist attacks. Before joining CNN, King was an Associated Press (AP) correspondent for 12 years. His AP duties included several major international events, including the Persian Gulf War, and serving as lead political correspondent for the 1992 and 1996 presidential elections.

King is a native of Boston and earned a bachelor's degree in journalism from the University of Rhode Island. He also has been awarded honorary doctorate degrees from URI, American University and Hobart and William Smith Colleges.