Trudeau's position on the subject has been well known for a long time and thee has been no change at all  although there is a difference between opposing a federal law such as the Kenney /Harper banning of the niqab at citizenship ceremonies and going to court to oppose a provincial law.On that Trudeau and Singh have taken exact the same position, opposing the law but not taking the province to court for now.

  What is odd and getting odder by the day is the unwillingness of the press to  ask Scheer about his position and that of his party. Despite the issue forming such a central part of the Conservatives last election campaign it seems that any such question for Scheer is off limits.