Laws have shaped how money affects politics in the modern era, but it is the courts that have really had the final say. Compiled below are some of the most important organizations and people who have sued to weaken campaign finance laws, or intervened in the courts to keep them from being undermined. Certain groups pop up in one form or another in multiple cases. Read on to see exactly where these figures’ and organizations’ fingerprints have been, what they’re trying to accomplish and who’s funding their efforts.