The latest news is that the pesticide companies (Monsanto et al) are attacking Dr Mercola personally. Dr Mercola's post details the plethora of nonsense they have propagated in order to confuse voters.
Unfortunately, when people are uncertain they tend to vote NO, but what we really need is a YES vote on this one. So tell your friends in California. It will do them no harm to require GMO products to be labelled, and having the ability to choose which foods they consume would do good.