There is no specific major that is needed for a student to attend law school. The ABA recommends that the best preparation for law school is to take challenging courses in a variety of disciplines. Lawyers advise that you take courses that will promote writing, speaking, and critical thinking skills.
Those courses can be found in a variety of disciplines, and the key advice for students in pre-law is that they should consult with the pre-law advisor about how to construct a personal curriculum that develops the skills and competencies necessary for success in law school.
Consider taking PHI152:Logic, as many W (writing flag) courses as possible, and any course that will challenge you to think on your own.