What should I major in ?

As a student, I've been interested in Political Science and Chemistry. I'm willing to either double major the two or double major pol sci with something that could help me become a diplomat or UN staffer. I made a 32 on the ACT this year as a Sophomore and shouldn't have a problem getting in to a school. What schools are good for these majors? Also, could I make any money doing the careers listed above?