Alternate headline: Author Announces Sequel to Blockbuster "The Art of the Deal."During his first term as president, Donald Trump expressed interest in buying Greenland from Denmark, to the bemusement of many. Although at the time he also noted that it wasn't "number one on the front burner" of his foreign-policy focus, Trump continued to pursue it. None other than Joe Manchin cautiously supported the idea for strategic purposes, especially with China's campaign to woo the Greenlanders even in 2018 becoming a concern. Denmark put a stop to that, but Trump was not convinced that China would let it go, especially...