Canada’s retaliatory tariffs take effect as Trump threatens to ban Bombardier jet sales in US

By Elisabeth Buchwald, CNN New York (CNN) — The trade war between the United States and Canada has entered a new chapter — and it could quickly get even uglier. At 12:01 a.m. ET on Tuesday, Canada imposed 15% to 50% duties on roughly $20 billion worth of American goods, matching the tariffs President Donald