The Misfits by James Howe

Bobby and his three best friends are all misfits. Bobby is overweight, Addie is too tall and smart, Joe is gay, and Skeezie has been labeled as the school's bad boy. Together they have been called every name in the book by the more popular kids in school. When it is time to elect a new student council president Bobby decides to run for the office with his friends as his support team. They run on a platform of No Name Calling which really rings a bell with everyone at school. Even the popular kids have been called names and can identify. Things are going well for Bobby until the teachers decide to put a stop to his candidacy.