Compile List Of Facebook Groups For Specific Niche

This is a simple project that can be done rather quickly. We are seeking a savvy Facebook marketing person to compile a list of top 40-50 Facebook groups that are geared toward liberal or democrat politics niche. (example: "I hate Donald Trump, Deport Trump, etc etc) -- any groups that are against Trump or Republicans. Groups must have a sizeable audience. So we'd like them to have at least 1000 members if possible. If someone can find me a list of these groups, I will consider hiring them to post in the groups as well. More details to follow. We need someone who can get this done as soon as possible. Thanks!