Will California vote to legalise Cannabis?

California already has fairly lax rules on Cannabis and it is available by prescription already, been in a forthcoming public vote people will be given the chance to vote to make the drug legal.  The war on drugs in America has been lost and the huge waste in resources locking people up can't reasonably been continued indefinitely can it?  Turning otherwise law abiding citizens into criminals makes no sense to me for a drug that is generally accept to be less harmful than alcohol.  Its not clear event if the vote is a yes where the Federal Government (President Obama) will over rule it.