Checking Teddy Roosevelt's resume is like reading a How-To guide on ass-kicking manliness. He was a cattle rancher, a deputy sheriff, an explorer, a police commissioner, the assistant Secretary of the Navy, the governor of New York, and a war hero. Out of all of his jobs, hobbies and passions, Roosevelt always had a special spot in his heart for unadulterated violence. In 1898, Roosevelt formed the first U.S. Volunteer Cavalry Regiment, known as the Rough Riders. Most people already know of the Rough Riders and their historic charge up San Juan Hill, but few know that, since their horses had to be left behind, the Riders made this charge entirely on foot. You just could not stop this man from violencing the hell out of a San Juan Hill.
And don't think that Roosevelt lost his obsession with violence when he became president, or he might just come back from the dead and murder you, (and how do you kill a Teddy Roosevelt that's already dead!?!). He strolled through the White House with a pistol on his person at all times, though, with his black belt in jujitsu and his history as a champion boxer, it wasn't like he really needed it.
It wasn't just his war record or the fact that he knew several different ways to kill you that made Roosevelt such a badass. It wasn't even the fact that he kept a bear and a lion at the White House as pets, (though that certainly helps). Teddy Roosevelt was a badass of the people. Roosevelt received letters from army cavalrymen complaining about having to ride 25 miles a day for training and, in response, Teddy rode horseback for 100 miles, from sunrise to sunset, at 51 years old, effectively rescinding anyone's right to complain about anything, ever again.
Did we mention he had asthma growing up? He did, and after he beat asthma to death, he ate asthma's raw flesh and ran 100 straight miles off the energy it gave him.
Greatest Display of Badassedry:
While campaigning for a third term, Roosevelt was shot by a madman and, instead of treating the wound, delivered his campaign speech with the bleeding, undressed bullet hole in his chest.