Cactoblasta would make the best president for three reasons. He will get respect from foreign nations, he has all the necessary experience, and he will lead the nation through the turbulent times we face.
First, Cacto would make the best president because he will get respect from foreign nations. As an experienced and well-known resident of Not-America he has the connections and the charm to sway other Non-Americans to his will. This will dramatically reduce the political fallout of the US international agenda.
Second, Cacto would make the best choices for America because he has the necessary experience. As a charming young man in his 20s, he knows all. Compared to geriatrics mired in their doubt and insecurity, his certainty and positive thinking will give the US a fighting chance in the global economy. His considerable experience in deceit, half-truth and reinterpretation will also provide a political climate favourable for correct decision-making, if only through the exclusion of alternative thought.
Third, Cactoblasta is the best presidential candidate because he will lead the nation through the dangerous times ahead safely. Cacto looks both ways before crossing the street and always throws salt over his shoulder when threatened by werewolves. This is proven by his previous two points.
Cactoblasta is America's best Presidential Candidate because he can lead the nation through the dangers ahead, he is experienced, and will recieve respect from our opponents and allies alike.
NB: This article is in absolutely no way inspired by Erathoniel's or San Chonino's vastly inferior arguments, and is not a result of a desire to get in on a new meme before it crushes the world in its path.