The written school policy was signed to agree by all students and their parents to not allow the students wearing the clothes or other accessories to school that display "symbols of violence," but one day Lucas, a student, wore a T-shirt to school with the image of a gun and the wording "Bring Your Gun to School Day - Tomorrow!"

- Did Lucas violate the school policy? what are precedent cases?

- T-shirt with the image of a gun and the wording "Bring Your Gun to School Day - Tomorrow!" is a political message advocating support for the Second Amendment or not? what are precedent cases?