Final answer:
William Howard Taft was the future president who once served as the governor of the Philippines.
Step-by-step explanation:
The future president who was once the governor of the Philippines is William Howard Taft. Taft served as the governor-general of the Philippines from 1901 to 1904 before becoming the 27th President of the United States in 1909. His tenure in the Philippines was marked by efforts to improve infrastructure, education, and establish a more stable government.
Learn more about William Howard Taft's governorship in the Philippines