It started as a joke.
But then, many on the left are a joke. Which explains the lack of a sense of humor.
But there is a left-wing response to the Tea Party. It's the Coffee Party (tip: OTB). Really. Okay, maybe they do have a sense of humor. Because I'm laughing.
And, they've already had their first meeting:
I'm thinking that Kraft Foods wouldn't let them use the name "Kool-Aid Drinkers."