A month after saying he'd seek re-election, Saint John Mayor Don Darling has announced a change of heart.

Progressive Conservatives in New Brunswick gather this weekend for a leadership convention, and a political scientist says with seven candidates in the running for the top job, it's anyone's race to win.

The city of Saint John will have a new mayor this spring as its current mayor, Mel Norton, has announced he won't seek a second term in the upcoming municipal election.