While Glenn Beck disowns him, Obama just announced that he's reading the rough rider's biography.
Then there was “W,” who worshipfully admitted that he modeled himself on the rough rider.
1733, "horse-breaker," from rough (adj. or adv.) + rider. In specific military use, a non-commissioned officer in cavalry regiments, from 1802; meaning "irregular cavalryman" is attested from 1884.
The nickname of a volunteer group of cavalry led by Colonel Theodore Roosevelt in the Spanish-American War. They were famous for a victorious charge at the Battle of San Juan Hill in Cuba.