If the media and the people continue to make fun of him and use his stupidity against him, I would not be surprised to see him resign. I don’t think his narcissism can deal with anyone ridiculing him, that would be worse for his ego than disagreeing with him.
When narcissists lose it they don't retire from the field--they fly into infantile rage. This chickensh_t a-hole would punish the entire country by means of betrayal before he would resign.