OTTAWA — A last-ditch effort to reach a new trade deal before a midnight tariff deadline failed Friday, as Prime Minister Mark Carney suspended talks with the United States and summoned his negotiators back to Ottawa. Canada vows to match new U.S. Key points and original sources are listed below.

• OTTAWA — A last-ditch effort to reach a new trade deal before a midnight tariff deadline failed Friday, as Prime Minister Mark Carney suspended talks with the United States and summoned his negotiators back to Ottawa.S1

• Canada vows to match new U.S. tariffs 'dollar for dollar' as trade talks failS2