President Donald Trump signs an executive order on a revised Cuba policy aimed at stopping the flow of U.S. cash to the country's military and security services while maintaining diplomatic relations, Friday, June 16, 2017, in Miami. From left are, Agriculture Secretary Sonny Perdue, Commerce Secretary Wilbur Ross, Rep. Mario Diaz-Balart, R-Fla., Florida Gov. Rick Scott, Cary Roque, Vice President Mike Pence and Labor Secretary Alex Acosta. (AP Photo/Lynne Sladky)