About this Youtube video: Liberal Party Leader Justin Trudeau was joined by his wife Sophie Gr goire Trudeau and children as he cast his ballot in his home riding of Papineau on Monday. For more info please go to Subscribe to Global News Channel HERE Like Global News on Facebook HERE Follow Global News on Twitter HERE Follow Global News on Instagram HERE Trudeau Liberals TeamTrudeau ChooseForward liberalparty justintrudeau GlobalNews.