The Democratic leader in the Louisiana House, Rep. John Bel Edwards, says he's running for governor in 2015.
Chairman of the House Democratic Caucus, Edwards has been a lawmaker since 2008 and has become one of Republican Gov. Bobby Jindal's most vocal critics, on issues including the budget, taxes and education.
Jindal is unable to run for a third consecutive term.
Many Republicans have been mentioned as possible candidates, including U.S. Sen. David Vitter, Lt. Gov. Jay Dardenne, Treasurer John Kennedy, Agriculture Commissioner Mike Strain and state Sen. Gerald Long.