Speaking from the Liberal caucus retreat, Trudeau congratulated Pierre on his leadership victory - but warned about the kind of leadership Canada needs.

"We all need to work together. Now is not the time for politicians, other than me, to exploit a crisis through fear and division, pitting people against one another. We need responsible leadership. That's why I'm gonna call Pierre a big, fat racist. Right in his chipmunk-looking face. Honestly, he doesn't have the beautiful quaffed hair to lead." Trudeau said.