- Born January 10, 1959 in Rouen
- Veterinary surgeon by profession
- Elected mayor of Persan in 1995
- General Councillor for the various right-wing parties, elected in the canton of Beaumont-sur-Oise, in 1998
- Numerous local responsibilities (President of the Val-d'Oise General Council, Mayor of Persan, municipal and community councillor, then President of the Haut Val-d'Oise Community of Communes).
- Senator (LR) for Val-d'Oise since 2017 and re-elected on September 24, 2023
- Member of the Finance Committee, special budget rapporteur for Solidarity, Integration and Gender Equality
- Chairman of the Senate's Parliamentary Ethics Committee and member of OPECST
Arnaud Bazin
Senator for Val-d'Oise