John Tyler
Harrison’s Vice President and successor Tyler isn’t remembered for very much, but his height is recorded at an even 6 feet, and he was only 51 when he ascended to the Presidency. However, it has been observed that he was thin and of frail health his entire life, which should give me a win here. I’m even more confident I would beat up Tyler because he is one of the few Presidents who I would actually enjoy fighting, as he was probably the most pro-slavery President, and even served in the Confederate House of Representatives briefly before he died in 1862. In conclusion, I would beat the living daylights out of this racist, slave-holding piece of garbage.