France is heading to the polls on Sunday in pivotal runoff elections which could hand a historic victory to Marine Le Pen’s far-right National Rally and its inward-looking, anti-immigrant vision. Sunday’s snap elections, which could also produce a hung parliament and years of political deadlock, have potential impact on the war in Ukraine, global diplomacy and Europe’s economic stability. Advertisement They are almost certain to undercut President Emmanuel Macron for the remaining three years of his presidency. Racism and antisemitism have marred the electoral campaign, along with Russian cyberattacks and more than 50 candidates reported being physically attacked. The government...