Stock market today: S&P 500 closes higher on Trump-fueled optimism
Trump said he was mulling imposing a 25% tariffs on Canada and Mexico from Feb. 1, citing concerns about their borders policies. The president, who officially took office on Monday, signed a slew of executive orders -- written directives issued to the federal government that are legally binding and do not require approval from Congress -- covering a wide sweep of issues, including immigration and border security.