France holds a parliamentary run-off election that will reconfigure the political landscape, with opinion polls forecasting the far-right National Rally (RN) will win the most votes but likely fall short of a majority. Such an outcome could plunge the country into a chaotic hung parliament, severely denting the authority of French President Emmanuel Macron. Equally, if the nationalist, eurosceptic RN did win a majority, the pro-business, pro-Europe president could find himself forced into a difficult "cohabitation". Marine Le Pen's RN scored historic gains to win last Sunday's first-round vote, raising the spectre of France's first far-right government since World War...