SacBee:

Nonprofit organizations that make political contributions in California will have to disclose more information about the source of their money under a law Gov. Jerry Brown signed Wednesday.

Senate Bill 27 was inspired by the 2012 ballot measure wars in California, when two out-of-state nonprofit groups poured $15 million into fighting Proposition 30 and supporting Proposition 32. Because of the groups’ nonprofit status, they were not required to report where their donations originally came from, leading some to describe the contributions as “dark money.”