How is income from working on a political campaign recorded, the organization paying say they are not required to issue a 1099. Does this need to be reported and where?

My grandson worked as a contract labor person for an organization handling a political campaign for someone running for a state office. His campaign manager told him that they are not required to issue a 1099 Misc form. Does he need to report this income on his tax form, if so where does it go?