Final answer:
The statement is False. President McKinley did not lead the Rough Riders at the Battle of San Juan Hill.
Step-by-step explanation:
The statement is False. At the Battle of San Juan Hill, it was Theodore Roosevelt who led the Rough Riders, not President McKinley. Roosevelt, who was the assistant secretary of the Navy at the time, played a major role in leading the charge up the hill and ultimately achieving victory. McKinley, on the other hand, was the President of the United States during this time but did not physically lead the Rough Riders in battle.
Learn more about Battle of San Juan Hill