SANTIAGO—Chileans vote for a new president on Sunday, with billionaire conservative Sebastian Pinera the favorite to win, although a crowded field of leftist challengers are likely to force a December runoff.
Opinion polls show Pinera, who was president between 2010 and 2014 and leads the Chile Vamos bloc, with a commanding lead over his seven mostly left-of-center rivals, but still shy of the 50 percent needed for an outright win.
