Soren Espersen, of the hard-right Danish People's Party, says Trump has effectively snubbed Queen Margrethe, Denmark's head of state, who formally invited the USA president and first lady Melania Trump.
The president mused about acquiring the semi-autonomous Danish island on Sunday, telling reporters that "it's something we have talked about".
"And Denmark owns Greenland, Denmark is an ally, Greenland is a strategic place, up there".
"It shows why we now more than ever should consider (fellow) European Union countries as our closest allies". He said "all she had to do was say, 'no we wouldn't be interested, ' but we can't treat the United States the way they treated us under President [Barack] Obama, I thought it was a very not nice way of saying something, they could have told me no".
It wouldn't be the first time an American leader has tried to buy the world's largest island. A lot of things can be done. He said that due to his attention to the matter, other North Atlantic Treaty Organisation countries have pledged $100 billion more, but even that is "still way short of what they should pay for the incredible military protection provided".
The president said he had a "great" talk with NRA Chief Executive Officer Wayne LaPierre on Tuesday, and denied reports that he had pledged not to pursue more stringent background checks.
The United States has a strong history of expanding its territory by purchasing land from other countries.
The proposed acquisition was greeted with a chorus of surprise and confusion.
But the melting polar ice sheet is opening up potentially major shipping routes, and untapped reserves of oil, gas and minerals will become increasingly accessible, leading Russian Federation and China to show mounting interest in the region.
"The US is an interesting ally for Greenland, but we also wish for Greenland to remain in the union we have today", she told Reuters. Greenland is not Danish. Frederiksen added. "Greenland belongs to Greenland".
'I mean, we're liable to wake up one morning and Donald, if he were president, would have nuked Denmark, ' Cruz said to reporters in New Hampshire in February 2016. Experts believe Greenland's vast natural resources are the primary reason for his interest. The U.S. already houses a military base there, part of the nation's ballistic early-warning system.
In 1946, the USA proposed paying Denmark $100 million to buy Greenland after flirting with the idea of swapping land in Alaska for strategic parts of the Arctic island.
Cruz's concern for Denmark only went so far, apparently, since he endorsed Trump for president a few months later, and has become a reliable source of lavish praise for Trump. "It's not No. 1 on the burner".
The trip, set to begin at the end of August, includes a stop in Poland to commemorate the 80th anniversary of the start of World War II.