A political committee established, financed, maintained or controlled by a corporation, union, trade association, collective bargaining organization, federation of labor unions or any membership organization is automatically affiliated and shares a contribution limit with that entity.  In addition, there are other structural relationships that trigger automatic affiliation and, potentially, shared contribution limits.  See the Political Committee Manual for details.

A contribution by a political committee with funds that have all been contributed by one person who exercises exclusive control over the distribution of the funds of the political committee is a contribution by the controlling person.  More info ...