Donald Trump, 45th President of the United States. "Cheeto" here refers to the apparent orange stain all over Trump's skin, and "Benito" is a reference to Italian fascist leader Benito Mussolini, whose beliefs and political tactics have been compared to Trump's. Used as a pejorative by Trump's opponents to insult him, by mocking his appearance and demonizing his character.
Cheeto Benito tweeted yesterday that Mexico will not, after all, be paying for the wall.
A Besto Pesto is someone who is your best friend in the whole world. You will do anything dumb with them, bully them relentlessly, but love them unconditionally. They stick with you everywhere you go and never leave your side. You are Besto Pestos with them even if you aren't together for a little bit. Unlike best friends, you only get one Besto Pesto in your life. Choose wisely.