"The scenario raised at least two possible legal problems for Conard and W Spann. First, federal law prohibits making a political contribution “in the name of another”—i.e., federal law prohibits a human from making a contribution to a Super PAC in the name of a shell company. In other words, federal law prohibits using straw donors.
Second, federal law requires a group that has the major purpose of influencing elections, that receives contributions or makes expenditures exceeding $1,000 in a calendar year, to register with the FEC as a “political committee” and to file periodic disclosure reports regarding where the group gets its money and how it spends that money."
Romney-Supporting $1 Million Mystery Donor Revealed—But the Show’s Not Over
Campaign Legal Center: