He received a degree in philosophy from Université Laval in 1995 and a certification in social work from Cégep de Sainte-Foy in 1998.

[2] In November 2020, a Léger-Le Journal de Québec poll mentioned Marchand as a possible candidate for Mayor of Quebec, receiving 1% support among potential voters.

On April 15, 2021, Marchand announced his candidacy for mayor of Quebec in a press conference at a community centre in Limoilou.

As polls closed on election night, around 8:30pm, local television networks declared Marie-Josée Savard the victor, with a 14% lead over Marchand.

Due to the surprise win by Marchand, Savard's campaign considered a recount, but conceded defeat the next day.