Yes, it's a pun.
Sorry, my basic critique of this "tax day tea party" embarrassment is below, but I just couldn't resist these -er- insightful comments from the Illinois "tea party" site, which I think show their true colors:
"I stand for preserving the American way. I am against this socialistic regime the uninformed have elected. I’ll be there with others!"
"[...] liberals are projecting a very rabid socialist agenda."
And when one lone voice chimed in to criticize the war, "Uh, [...] 'failed Iraq war'? Did you miss something? Like the success in Iraq? Democracy? Come on down to the tea party, be sure to wear your Obama slobbering t-shirt so we know who you are … maybe by April 15 you’ll come to your senses when you see how (N)Obama is rapidly destroying our country."
"I will be there will bells on. I am so tired of what Obama is doing to this country! We need to take back our country and renew our pride in being a true American."
"I am in P-Town also Carol and Bobbie, and if we can get an April 15th Tax Tea Party here in the land of Obamunism Central, I can be there. Of course, I also view April 15th as National Buy A Gun Day, so it might have to happen after Pekin Gun Store opens."
"Operation Support Our Troops organization will be there and is requesting perhaps a donation to bring since their inventory is low for the troops. Come with American Flags and signs - enough is enough! Get our country back! Help us with this 2009 American Revolution - stand strong, stand united and let us make history!"
"No more government funding of a 'bridge to nowhere', no more providing non-essential medical care for illegals, no more research grants 'to study the Kentucky toad' (see Stimulus bill), or public funding of 'artists', No more public financing of insurance for those that CHOOSE to live in high casualty risk areas, like beach front property."
I want to be clear that criticism or anger directed at Obama is not necessarily racist - there's a lot to gripe about, including how the economy is being managed and on whose behalf - but in this context of jingoistic "Ameristan" comments emphasizing the middle name "Hussein" and so on, I think there is good reason to see racism at work.
That's not all that's wrong, of course. Take the photo of a Texas woman proclaiming, "I'm a proud right-wing extremist." Or the anti-welfare "distribute my work ethic" or "free markets not free loaders".
This could go on all day, but maybe in closing we can pause to ponder the sly, "Don't tax me, bro."