Neither his claim that border crossings are an unchecked “invasion” nor his depiction of drugs pouring across an unguarded border has any basis in federal data.

Put simply, tariffs are a tax on imports. Here's what Donald Trump did with them in his first term and how they impact the economy.

The U.S. dollar rose on Tuesday after President-elect Donald Trump said he would impose tariffs on products coming into the United States from Mexico, Canada and China, as investors braced for policies that could set the stage for trade spats.