A riot police officer aims during the May Day march, Monday May 1, 2017, in Paris. With just six days until a French presidential runoff that could define Europe's future, far-right leader Marine Le Pen and centrist Emmanuel Macron held high-stakes rallies Monday that overlapped with May Day marches and underscored the fact that jobs are voters' No. 1 concern. (Photo by Kamil Zihnioglu/AP Photo)
