[1] A member of the Democratic Movement (MoDem), which he joined in 2020 upon leaving The Centrists (LC), he has represented the 4th constituency of the Eure-et-Loir department in the National Assembly since 2024, previously holding the seat from 2007 until his appointment to the government in 2023.

[3] A biologist by occupation, Vigier became a Deputy Mayor of Châteaudun and regional councillor of Centre in 1995, positions he held until 1998 and 2014, respectively.

[5] In 2021, he was returned to the regional council on the Democratic Movement list led by Agriculture Minister Marc Fesneau.

[7] He also served as member of the French delegation to the Parliamentary Assembly of the Council of Europe from 2022, where he was part of the Committee on Social Affairs, Health and Sustainable Development.

[8] In the 2024 snap election, Vigier was reelected with 51.7% of the second-round vote, despite placing second in the first round behind Roger Pécout of The Republicans, who also had the support of the National Rally as part of the Union of the Far-Right.