South Park. Ron Paul. Here is a link to the episode.
They tacitly endorse Paul and Johnson.
The train scene is 'any problem' that can be seen coming, but due to something stupid and meaningless, they die (or simply refuse to face the problem).
The cat consistently saying something unintelligible with outrageous conclusions reached by all those that try to speak with it can be seen to represent consistency and a language barrier. The sound of the cats jumble is similar to the once stated in the episode translation of "O long Johnson."
Everything that is 'the cat' is Paul. It originated online with young people. The media write Paul off as an internet meme. The consistency and replacement of Ron Paul at the end debate with the cat can be seen saying Paul doesn't follow memes or fads and instead says the same thing over and over even though people will interpret it any way they want.
The reference of the language barrier is the "war" with the "cats." The imagined cat army and inevitable war represent Iran and Ahmadinejad. Again, anything the cat says can and will be used against it as evidence for war.
The whole episode is pregnant with metaphor. I submit that they are telling Ron Paul to "Go long with Gary Johnson" and telling people to stop being retards with memes (even though they are funny). The clips of Ron Paul were strategically placed and leveled so as to hear specific things. Even when Paul is not on the stage at the end, his voice can be heard saying, "I thought maybe you were prejudiced against ... and a doctor that practiced medicine in the military."
Matt and Trey told Ron Paul to run as a third party candidate with Gary Johnson. That is my take.
From the description of the video on the official site: "Mankind's evolution begins to accelerate at a rapid and disturbing pace. Concurrently, another species on the planet is exhibiting the same drastic development.
Eventually the two species will battle to the death and Faith Hilling may be humanity's only hope."
I know I am right, at least with the Iran metaphor.