A boy in California spent his his summer memorizing his favorite document: the US Constitution.
10-year-old Nathan Bond can recite it in 25 - word for word.
It took him 137 days to memorize it, working on it for a few hours a day - even on vacation.
In fact, he only took one day off - his birthday.
Nathan says he wants to be president some day, so he says he's partial to Article 2, Section 1: the Presidential Oath of Office.
Online: Nathan Bond recites entire Constitution from memory
10-year-old boy memorizes entire US Constitution