WASHINGTON — A day after the audacious U.S. military operation in Venezuela, U.S. President Donald Trump on Sunday renewed his calls for an American takeover of the Danish territory of Greenland for the sake of U.S. security interests, while his top diplomat declared the communist government in Cuba is “in a lot of trouble.” The comments from Trump and Secretary of State Marco Rubio after the ouster of Venezuela's Nicolás Maduro underscore that the U.S. administration is serious about taking a more expansive role in the Western Hemisphere. With thinly veiled threats, Trump is rattling hemispheric friends and foes alike, spurring a pointed question around the globe: Who's next? “We do need Greenland, absolutely,” Trump said in an interview with The Atlantic in which he described the strategically located Arctic island as “surrounded by Russian and Chinese ships.” Asked what the U.S.-military action in Venezuela could portend for Greenland, Trump replied: “They are going to have to view it themselves. I really don’t know.” The White House did not respond to a request f