I guess - as a politics nerd, among the other kinds of nerd I am - that I identify with the sense of relief in the first two panels. Though the joke strikes me as not so much a joke but basically reality (See: Bloggers discuss 2012. Hell, it's basically a given that you don't even wait till the election ends to debate the next one).
And anyway, if the joke is that people say they want to be done with the stress politics but really they don't, I feel like a better joke might revolve around the game "Guess who the president is going to have work for him" or other political speculation.
In any case, it's not a bad comic - it just feels like as far as political humor, it falls far short of some of the great stuff out there. I feel like this election gave us so much to mock - I'll be bipartisan and mention both Sarah Palin and Mike Gravel - that this feels subpar. Randall has yet to succeed at political humor, and I think he should stop trying.
update: Oh god it's worse than I though. It didn't even take long for me to find way more examples of lame 2012 humor. Let me be clear - I don't think any of these are funny. I think all of them are based on a stupid, obvious joke that you have heard and will hear after every election.