William McKinley actually said...
Now, therefore, I, William McKinley, President of the United States, do hereby declare and proclaim that in addition to the blockade of the ports specified in my proclamation of April 22, 1898, the United States of America has instituted and will maintain an effective blockade of all the ports on the south coast of Cuba from Cape Frances to Cape Cruz, inclusive, and also of the port of San Juan, in the island of Puerto Rico.
06/27/1898