Wikipedia:Articles for deletion/Populist Party (France)
In addition to the articles above, I can find 'Le Pen soutenu par le Parti populiste' https://www.nouvelobs.com/politique/20061017.OBS5913/le-pen-soutenu-par-le-parti-populiste.html and another Le Monde article about the far right https://www.lemonde.fr/societe/article/2007/03/10/a-lyon-bruno-megret-aura-le-droit-de-venir-soutenir-en-silence-jean-marie-le-pen_881468_3224.html. It's not an easy name to find sources for, as other parties are described as 'Populist party / Parti populiste'. But it has enough to pass 
— User:RebeccaGreen, 04:39, 4 November 2018 (UTC)
Stance: keep
Cited policy: WP:GNG (Wikipedia:Notability)