AP offers this report, which begins: “The campaign contribution limits approved by California voters in 2000 are too weak and have done little to stem the flow of large donations from wealthy individuals, corporations and interest groups to state candidates, a political think tank said Friday. The Center for Governmental Studies in Los Angeles said contributions of more than $3,000 still make up more than 60 percent of the donations to legislative candidates despite the controls imposed by Proposition 34.”
You can find the CGS Report, In the Dead of the Night: How Midnight Legislation Weakened California’s Campaign Finance Laws, and How to Strengthen Them, here.