Trump promised at his inaugural address that "national unity" would return. But much of this week has seen the returning president continue to pummel out-of-power foes. He called former Republican Rep. Liz Cheney, of Wyoming, a "crying lunatic."

In his address to the World Economic Forum, U.S. President Donald Trump threatened to impose tariffs on non-U.S. manufactured products. Secretary General of the International Chamber of Commerce UK Chris Southworth tells Eleni Giokos what this could mean for consumers,