[1] Vincendet became engaged in political life in 2004 with Étienne Blanc the MP and mayor of Divonne-les-Bains, he began his political career as an activist in Ain and took part in several electoral campaigns with elected officials of national and regional rank, including Jean-François Copé, deputy-mayor of Meaux as project manager in the direction of the federations, then responsible for membership at the national level of the UMP.
[5] On 14 June 2016, he was nominated by Les Républicains candidate for Rhône's 7th constituency in the 2017 French legislative election which covers the communes of Bron, Rillieux-la-Pape, Sathonay-Camp, Sathonay-Village et Vaulx-en-Velin.
[5] On 18 November 2020, Alexandre Vincendet was convicted by the Lyon criminal court for having committed acts of violence against a minor on 6 March 2020, without incapacity, by an ascendant; in this case his son then aged 4 years old.
[13][14][15][16][17][18] In October 2021, a complaint against Alexandre Vincendet for violence against a 15-year-old minor by a person with authority, in this case his son then aged 5, was dismissed, insufficiently characterized.
[19] In March 2023, the Lyon public prosecutor's office opened an investigation for illegal taking of interest and embezzlement targeting Alexandre Vincendet in question a free shuttle for the private establishment Saint-Charles de Rillieux-La-Pape set up in 2021.
[24] The action of Alexandre Vincendet at the town hall of Rillieux-la-Pape is the subject of a chapter in Erwan Seznec's book, Our elected officials and Islam , published by Robert Laffont in 2020[25] as well as a work entitled Les territoires gagnés de la République, written by Arnaud Lacheret and released by Le bord de l'eau in 2019.