VaTrudeau vakatanga kuita zvematongerwo enyika vachipinda muLiberal Party of Canada. Vakagadzwa saLester B. Pearson's Parliamentary Secretary uye vakazova Gurukota ravo reJustice. VaTrudeau vakava mukurumbira munhau, vakakurudzira "Trudeaumania", uye vakatora hutungamiri hwevaLiberal muna 1968. Kubva mukupera kwema1960 kusvika pakati pema1980, hunhu hwavo hwakadzora mamiriro ezvematongerwo enyika kusvika padanho risati ramboonekwa muhupenyu hwezvematongerwo enyika hweCanada. Pasinei nemutauro wavo wega, "Reason is before passion", hunhu hwavo uye basa ravo rezvematongerwo enyika rakamutsa kupokana muCanada yese.
Quebec