Arsenault graduated from Dalhousie Regional High School as well as St. Thomas University.
Additionally, Arsenault would serve as both Vice-President and President of the New Brunswick Teachers' Association between 2013-2017.
For the 1997 federal election, the ridings were restructured, and this time Arseneault campaigned at the Madawaska—Restigouche electoral district.
However, Progressive Conservative candidate Jean F. Dubé won the riding.
On 9 June 2018, Arseneault became the official Liberal candidate for the 2018 New Brunswick provincial election held on 24 September in the riding of Campbellton-Dalhousie, which he won.