Chris Good wonders what Obama will do:
One can ... envision a coalition of younger and marginalized voters being disappointed in Obama if Prop. 19 passes and he decides to sue. Call them the Shepard Fairey coalition. In 2008, Obama was cool among this crowd; if he attacks Prop. 19, a lot of that mojo will disappear. Being seen as a buzzkill never helped any politician among young and disaffected voters, much less Obama, who rode their support to victory.
(Image: From Print's 2009 design contest. The goal was to imagine what "a legal pack of marijuana cigarettes [would] look like.")