During the last election Jason Kenney and Stephen Harper appealed a  supreme court decision that made Kenney's  act to disallow women the right to wear the niqab at citizenship  ceremonies.
Trudeau spoke out strongly against that and against the general whipping up of bigotry on the part of the Conservatives.as soon as he got into power the appeal was canceled.

Taking a province to court is not a snap decision and it is a step that none of the leaders are willing to take at this time.