US tariffs on Canada and Mexico take effect as China takes aim at US farm exports. Trump to lay out domestic and foreign policy agenda in address to Congress. Pope Francis off mechanical ventilation, stabilizing after breathing crises. Gene Hackman and wife Betsy Arakawa's cause of death still under investigation. Canada's Ontario threatens to cut off electricity, critical mineral supply over U.S. tariffs. Boston mayor, top cop criticized after offering condolences to family of armed man shot by officer. Trump pauses US military aid to Ukraine while pressuring Zelenskyy to move toward quick end to war.