Marc Tanguay is a Quebecois politician and a member of the National Assembly of Quebec for the LaFontaine electoral district.

The 2018 Quebec general election was held on October 1, 2018, to elect members to the National Assembly of Quebec. The election saw a landslide victory for the Coalition Avenir Québec (CAQ) led by François Legault, which won 74 of 125 seats, giving the party a majority and unseating the Quebec Liberal Party. The Liberals became the official opposition with 31 seats.