He must of got word that the Senate was not going to past it or people going call for him to be removed from office via the military.
Or maybe he is worried about an adverse judicial decision.
It’s also possible he got a letter from the Governor General informing him to knock it off or HRM Queen Elizabeth in her capacity as Queen of Canada and Head of State would dissolve his government and order new elections.
Many many People are calling the Governor General demanding she Fire Trudeau ,LOL
Or the Queen’s staff finally sent a text, “We are not pleased.”
But his “threat continues”.