Trump's announcement comes on the eve of Canadian retaliatory tariffs set to take effect Tuesday on $20 billion of U.S. Trump says Canada’s Bombardier cannot sell in US unless it builds there Key points and original sources are listed below.

• Trump's announcement comes on the eve of Canadian retaliatory tariffs set to take effect Tuesday on $20 billion of U.S. goods.S1

• Trump says Canada’s Bombardier cannot sell in US unless it builds thereS2