Big bucks, shadowy companies: Election mystery money returns

Campaign money from shadowy sources is back this presidential election.

At least $4 million of it is flowing to outside groups helping White House hopefuls, making it difficult to trace who’s behind the big bucks. Both parties benefit from money routed through obscure corporations, or from nonprofits that don’t have to disclose their donors.

The contributions are a reminder of federal court decisions in recent years, like Citizens United, that loosened prior restrictions in campaign finance laws. That can hide who’s really backing candidates – and what favors or influence could be owed should they get elected.

Read more by JACK GILLUM, CHAD DAY and STEPHEN BRAUN at AP.com