Factbox-France's Macron faces far right's matriarch, an 'Iron Lady' and a polemicist

Marine Le Pen, leader of French far-right National Rally (Rassemblement National) party and candidate for the 2022 French presidential election, holds a Rhum bottle as she poses during a visit at the 58th International Agriculture Fair (Salon de l'Agriculture) at the Porte de Versailles exhibition center in Paris, France, March 2, 2022. REUTERS/Johanna Geron

PARIS (Reuters) - President Emmanuel Macron said on Thursday he would run for second term at the helm of the euro zone's number two economy.

Here's a rundown of pollsters' top five challengers for the Elysee Palace.