Political cartoon by Steve Breen of The San Diego Union-Tribune published on on 21 October 2010.
In next week elections, Californians will be voting on a proposition to legalize marijuana use for recreational purposes in the state. According to recent polls, most voters in California favor the proposition.
The cartoonist is critical of the proposition and mocks the arguments being used to support the proposition. He believes that supporters are simply selling snake oil. The term refers to any product or thing that is questionable, exaggerated, or useless but the salesman is trying to make you believe it is good.
Pot is the slang or street term for marijuana.