 Turnout is high, a reflection of the stakes in this unexpected election, which could see one of the top two powers in Europe led by a government of the populist right. After today's first round, the two leading candidates in each constituency qualify for round two, plus in some cases a third candidate if they get enough votes. So it won't be till next Sunday that France will know the composition of its next parliament, and if the national rally has pulled off a historic and spectacular win.