Investors have anxiously awaited Trump's start to see which policies he prioritizes and which promises he makes good on. Few issues are being watched closer than tariffs, which Trump campaigned on. Trump said his administration plans to launch 25% tariffs on Mexico and Canada on Feb.

Here's the sectors are most vulnerable and which ones will prove to have greater resiliency to this economic pressure

Greenland residents "want to be with us," Trump told reporters Saturday on presidential aircraft Air Force One.

The story goes that Trump and Frederiksen spoke on the phone last week for about 45 minutes in what was expected to be a bit of a feeling-out between the two parties, given Trump’s very public declaration that he would like to take Greenland off Denmark’s hands.