Lauren Rosenhall for CalMatters:

In California, their numbers, as well as their donations, are surging. According to a CalMatters analysis, the number of nonprofits affiliated with California legislators or caucuses grew from at least three in 2010 to at least 12 last year, with total revenue of about $2.9 million. 

Much of the money has come from corporations and unions with business before the Legislature, including oil, tobacco and other lobbies whose political contributions are officially or unofficially shunned by the member’s party. The upshot, experts say, is a monetary backchannel that, while legal and even sometimes beneficial, has also become an increasingly common way for politicians to raise and spend money outside the limits even of California’s tough regulations.