When I saw this, I was sure I had seen it before.
If we don't we will have more people riding in the cart than pulling the cart and America will go the way of Europe.— Gov. Bobby Jindal (@BobbyJindal) July 1, 2012
Jindal is using "carts" instead of "wagons" in that version. But he's talking about Europe so it must have something to do with cart being a metric unit. Anyway he's used this image lots before. This was brought to our attention a few months ago when Oyster pointed it out.
He only mentioned it then because I had noticed someone else throwing it around.