Warren Buffett says tariffs are “an act of war, to some degree.” Berkshire Hathaway’s chairman and chief executive said the country has had a lot of experience with tariffs, and that over time they are a tax on goods.

Warren Buffett, the famed investor behind Berkshire Hathaway, offered a sharp rebuke of President Donald Trump’s 25-percent tariff on goods from Mexico and Canada set to take effect Tuesday. “They’re an act of war to some degree,