President Donald Trump called for "immediate negotiations" with Denmark to "discuss the acquisition of Greenland by the United States."

Federal Reserve Chairman Jerome Powell plans to attend the oral arguments at the Supreme Court.

Trump said over the weekend that he would slap tariffs on imports from eight European countries in retaliation for moving troops to Greenland.

While the scenario is unlikely, Greenland has to be prepared as "the other side" has not ruled out the use of military force.

Trump will be meeting with world leaders at the World Economic Forum in Davos, Switzerland later this week.