What if the French left stays home next Sunday? Two-thirds of those who actively support Jean-Luc Mélenchon see no reason to choose centrist incumbent Emmanuel Macron over the far-right's Marine Le Pen in the presidential run-off. In a nation where the president enjoys outsized powers, this is the election that matters. Why are so many of his supporters unfazed by the prospect of Le Pen beating Macron? She's the leader of a party whose roots go back to Vichy France and the 1961 attempted coup to keep Algeria French.