"There was so much excitement around Usha's visit to Greenland this Friday that I decided I didn't want her to have all that fun by herself, and so I'm going to join her," Vance said in a video announcement Tuesday.

J.D. Vance doubled down on the administration's interest in acquiring Greenland while at the Pituffik Space Base as Donald Trump argued the U.S. "can't" do without it.