Final answer:
The debated telegraph exchange is evidence of how sensationalized journalism, or yellow journalism, contributed to public support for the Spanish-American War.
Step-by-step explanation:
The telegraph exchange between Frederic Remington and William Randolph Hearst, while debated in its authenticity, symbolizes the idea that sensationalized journalism contributed to public support for the Spanish-American War. This period of journalism, known as yellow journalism, involved newspapers using attention-grabbing headlines and exaggerated stories to influence public opinion and increase newspaper circulation. Publishers like Hearst and Joseph Pulitzer were known for such practices, which played a role in stirring up emotions and pushing the United States closer to war following the explosion of the USS Maine.