In the election in October 2019, Bernier was challenged for his seat in Beauce by Conservative candidate Richard Lehoux, a fourth-generation dairy farmer and past president of the Fédération Québécoise des Municipalités. He lost over 20 percent of his vote from 2015, finishing with 28.3% to Lehoux's 38.6%, with the Bloc Québecois and Liberals finishing a distant third and fourth, respectively. Nationally, Bernier was the only PPC candidate to come within sight of being elected; no other candidate won more than six percent of the vote, and the party as a whole won only 1.6% of the popular vote.