Who led the Rough Riders during their famous charge?

The Rough Riders were a volunteer cavalry regiment that became famous during the Spanish-American War, particularly due to their charge up San Juan Hill in Cuba. Theodore Roosevelt, who at the time was the Assistant Secretary of the Navy, took on the role of lieutenant colonel and is widely recognized as the leader of this notable group. Roosevelt's leadership and the dramatic charge of the Rough Riders helped to solidify his reputation as a war hero, which ultimately contributed to his rise in American politics and his election as President.

The other individuals mentioned do not have a direct connection to the leadership of the Rough Riders. William Jennings Bryan was a prominent political figure and orator but was not involved with the regiment. Commodore Dewey was a naval officer remembered for his victory at the Battle of Manila Bay but had no command over the Rough Riders. John Jay was a founding father and the first Chief Justice of the United States, with no involvement in the events of the Spanish-American War. Thus, the choice of Theodore Roosevelt accurately reflects the historical context of the Rough Riders and their famous charge.