PRO Campaigners are political professionals who specialize in running campaigns for candidates. They are responsible for developing and executing strategies to promote a candidate's platform, as well as managing the day-to-day operations of a campaign. They often work closely with the candidate to ensure their message is communicated effectively to the public. They may also be involved in fundraising, media relations, and other activities related to the campaign. POLS, the 4 letter solution to the crossword, is an acronym for Political Science, which is the field of study that focuses on the analysis of political systems, behavior, and processes.