PARIS – Centrist Emmanuel Macron and far-right populist Marine Le Pen advanced Sunday to a runoff in France's presidential election, remaking the country's political landscape and setting up a showdown over its participation in the European Union. French politicians on the left and right immediately urged voters to block Le Pen's path to power in the May 7 runoff, saying her virulently nationalist anti-EU and anti-immigration politics would spell disaster for France. "Extremism can only bring unhappiness and division to France," defeated conservative candidate Francois Fillon said.