"Since the early 1960s, when the United States imposed a trade embargo on Cuba, the centerpiece of U.S. policy toward Cuba has consisted of economic sanctions aimed at isolating the Cuban government. In December 2014, however, the Obama Administration initiated a major policy shift, moving away from sanctions toward a policy of engagement and the normalization of relations. The policy change included the rescission of Cuba's designation as a state sponsor of international terrorism in May 2015; the restoration of diplomatic relations in July 2015; and steps to increase travel, commerce, and the flow of information to Cuba. President Trump unveiled a new policy toward Cuba in 2017 increasing sanctions and partially rolling back some of the Obama Administration's efforts to normalize relations."
CRS In Focus, IF10045
Congressional Research Service: https://crsreports.congress.gov/