U.S. stocks opened lower on fears a trade war will lead to a recession. On Sunday, Trump declined to rule out that possibility.

President Donald Trump signaled two big things this past weekend on the tariff front. One is that he is pressing forward with his full slate of tariffs on Canada and Mexico next month, despite the economic pain that has already arrived — and despite two month-long delays.

Major stock indexes tanked Monday, continuing a sell-off that gathered steam last week as rattled investors began zeroing in on the prospect of a significant fall-off in U.S. growth amid persistent inflation and a wobbling job market.