U.S. Democrat and former North Carolina Senator John Edwards has ended his campaign for the U.S. presidency.
Speaking in the southern city of New Orleans on Wednesday, where he began his campaign more than one year ago, Edwards said it is time for him to step aside so, in his words, "history can blaze its path."
Edwards did not win any of the Democratic Party's nominating contests.
He did not indicate if he would endorse either of the two leading Democratic candidates -- New York Senator and former first lady Hillary Clinton or Illinois Senator Barack Obama.
In the Republican field, former New York City Mayor Rudy Giuliani is expected to drop out of the race Wednesday evening and endorse Arizona Senator John McCain, after finishing a distant third in Tuesday's primary in Florida.
McCain won the Florida primary, just ahead of former Massachusetts Governor Mitt Romney.
Republican candidates will debate Wednesday night at the Ronald Reagan Presidential Library in California.
McCain says his victory in Florida gives his campaign momentum heading into next week's multi-state primaries and caucuses, known as "Super Tuesday."
On the Democratic side, Clinton won in Florida over Obama, but the national Democratic Party has stripped Florida of its delegates as a penalty for moving up its primary election.
Still, Clinton told her supporters in Florida that the win gives her campaign an important edge heading into Super Tuesday. Obama won the South Carolina Democratic primary last Saturday, with Clinton finishing a distant second.