Editorials: A New Low in Campaign Finance | Robert Maguire/The New York Times
One corner of the world of “dark money” just got a little brighter, and it doesn’t bode well for the 2016 election. A recent tax filing by Carolina Rising, a 501(c)(4) social welfare organization, shows that in 2014 the group spent $4.7 million on ads that had one thing in common: touting the legislative accomplishments of Thom Tillis, who was then North Carolina’s speaker of the House. That year, Mr. Tillis also happened to be trying to unseat Kay Hagan, the incumbent Democratic senator. Carolina Rising spent the money in a three-month blitz leading up to Election Day, but we may never learn where these millions came from. The partial disclosure required of 501(c)(4) outfits means that while we do know that 98.7 percent of the group’s revenue came from a single donor and that virtually every penny of it was used to further the cause of Mr. Tillis’s campaign, we don’t know who Carolina Rising’s secret benefactor was.