Campaigns for office are a subset of all political campaigns. Post-Citizens United, corporations can engage in or financially support any political campaigning

Campaigns for office are a subset of all political campaigns. Post-Citizens United, corporations can engage in or financially support any political campaigning they like in whatever form, as long as they don't make financial or in-kind contributions to the electoral campaigns of individual candidates. They don't need to form a PAC to do so. https://en.wikipedia.org/wiki/Citizens_United_v._FEC#Super_PACs https://en.wikipedia.org/wiki/Citizens_United_v._FEC#Super_P...