The People’s Party is a new political party in Canada, being formed in 2018 when Maxime Bernier, dissatisfied with the direction of the Conservative party, left.
Bernier is a sitting MP (and currently the only People’s Party MP), but he’s more than that. A former Cabinet member, he also received 49% of the vote in the 2017 Conservative leadership contest on the final round.
So he represents an important segment of political thought in the country. The party itself isn’t polling that well, but has already fielded a large number of candidates (more than either the NDP or Greens).
So should Bernier be in the October debates? My sense is yes, especially given the precedent in 2015 with the Green party, where May was invited to two debates despite being the only Green party MP, and similarly polling fairly poorly (around 4%, while the People’s Party is around 3% right now).