DC Insider is a term used to describe someone who is well-connected and knowledgeable about the inner workings of Washington, D.C. This person typically has access to information that is not available to the general public. The acronym POL stands for politician, which is one type of DC Insider. Politicians are people who are elected or appointed to represent a constituency in government. They are often well-connected and have access to information that is not available to the general public.