As a professional comedian/cartoonist. There is a seriousness inside his joke.
He may or may not be really endorsing any candidate. But using absurdness of endorsing to point out problems.
Over the past generation or so. We have been equating a person's personal ethics and their stance as a human being based on their political and who they vote for.
Studies show that a person's political stance is based on what they grew up with. So if you lived in a republican family with republican friends you will be republican or vice versa. Growing up in such an environment the opposing political party is seen as evil, stupid, or part of some grand conspiracy. So attacks on that candidate of your choosing are usually ignored or considered exaggerated for political reasons. While what they do well, is strongly weighed. Thus making your choice seem perfectly rational.
Now if you are actually a person in the middle, and you observe all these families and lives you find that they are quite similar, have the same problems and often think of the same solution, until the party of their choice states it is different.
While I personally will be voting for Clinton,it isn't because Trump voters are all racists. Nor do I expect the democratic party turn the US into a communist nation.
If I was American, I would vote Democrat. There is a safety rule in politics -- you need checks and balances. If you get a Republican senate, a republican house, and a republican president, what is there to stop them from enacting laws detrimental to the middle or lower class. Obviously, we have already seen laws that favour the super wealthy. What would stop a stupid law of there was a Republican majority as mentioned.
With checks and balances, the president can veto bad legislation, and he can, if he is intelligent (as opposed to clever), work with congress to set the direction for the next term. I believe that a president should be there for 8 years, and only on exception, should he be removed (voluntarily or otherwise, after 4 years).
And with this election, please show me the plans for the next President. The democrats have posted theirs. Possibly the Republicans have also posted theirs, but what about independent Trump, All I hear from the debates is 20 seconds of I will do better, and 100 seconds of side issues, eg blasting Senator Hillary with insults. Take this note with you "She did not get to be senator because of her looks, she earned that right to represent her people". A President is there not to lead, but to represent the people. People who are giving him a mandate to carry out the people's wishes.