Economic uncertainty looms over Wall Street after a back-and-forth between the U.S. and Canada on tariffs. On Wednesday, the U.S. will impose 25% tariffs on all steel and aluminum imports. CBS News' Kelly O'Grady and Zak Hudak break it down.

US stock market volatility surged as US-Canada trade tensions rattled investors. The Dow Jones dipped 0.3%, while the S&P 500 fell 0.3%, reversing earlier gains. Despite a 3.1% rise in core CPI, marking its lowest increase since April 2021,

The U.S. stock market is sinking further Tuesday after President Donald Trump raised the stakes in his trade war, pulling Wall Street more than 9% below its record set just a month ago. The S&P 500 was down 0.

Trump threatened to double the tariff on Canadian metals after the leader of Ontario put a surcharge on energy sales to the U.S. Meanwhile, the House of Representatives narrowly passed a short term government funding bill and Ukraine approved a potential 30 day ceasefire plan.

A major sell-off of stocks on Wall Street continued Tuesday on the heels of an intensifying trade war between the U.S. and Canada.

The selloff on Tuesday extended a days-long market decline touched off by U.S. tariffs imposed last week on Canada, Mexico and China, some of which were delayed.