Prior this "Citizens United" legal decision, Inter+National Corporations were all restricted from contributing unlimited amounts of campaign funding monies directly to any of our American political candidates..
The FEC failure of not taking any restrictive action in preventing USA political candidates like U.S. Senator Mitch McConnell from skirting IRS Laws by keeping million$ in donated Corp political Super PAC $$$ has now been exposed !.
http://youtu.be/hoI2yQFnfK8You Tube