Americans had to decide how to roll their new territories. When the war would Spain begin the United States pledge to "leave the government and control of Cuba to its people." In what way did the United States fail to keep the promise referred to in the quotation?

The United States failed to keep its promise by intervening in Cuban politics and economy, imposing the Platt Amendment in 1901 which gave the US the right to intervene in Cuban affairs and to maintain a naval base in Cuba. The US also imposed a series of economic policies that limited Cuban sovereignty and autonomy.