Far right faces test in regional election

Winning control of any region would be unprecedented boost for National Front

Marine Le Pen's anti-immigration National Front was the front-runner heading into the decisive second round of French regional elections on Sunday, and now it's up to voters whether to hand the party an unprecedented political victory.

Le Pen is riding high after extremist attacks and Europe's migrant crisis, and the party came out on top in six of France's 13 newly drawn regions in the first round a week ago. But polls suggested it may fail to translate that into wins in the second round.