SACRAMENTO – When Hiram Johnson championed an initiative system for California nearly a century ago, he sold it as a grass-roots way to “arm the people to protect themselves.” California's 23rd governor foresaw citizen campaigns that would spring to life and put propositions on the ballot when the Legislature failed to address a pressing need. --snip-- But 97 years after Californians voted to allow themselves to put measures on the ballot, overturn laws adopted by the Legislature and oust elected officials in midterm, Johnson's experiment in direct democracy has changed dramatically. He couldn't have envisioned the multimillion-dollar campaigns for Proposition...