Why did the newspapers and the public support the Cuban people so strongly?

Milestones: 1866–1898 - Office of the Historian
The papers did not create anti-Spanish sentiments out of thin air, nor did the publishers fabricate the events to which the U.S. public and politicians reacted so strongly

“Newspapers did not cause the Cuban rebellion that began in ... been selling papers by fanning anti-Spanish public opinion in ... to which the U.S. public and politicians reacted so strongly.”.