Answer
Marion Maréchal won the best result in the 2015 regional election in France. She was a candidate for the National Front (FN) party, which is a far-right political party. She won the election in the Provence-Alpes-Côte d'Azur region, which is in the south of France. The FN party has been gaining popularity in France in recent years, and Maréchal's victory is seen as a sign of this.