Lefty New York City Rep. Alexandria Ocasio-Cortez claimed Monday that Elon Musk, the world’s richest man, is stupid during a fiery screed that drew mockery from her critics. “This dude is probably one of the most unintelligent billionaires I have ever met or seen or witnessed,” Ocasio-Cortez, 35, said during an Instagram Live video session. “This dude is not smart, and the danger in the lack of intelligence and the lack of expertise that Elon has, I mean, this guy is one of the most morally vacant but also just least knowledgeable about these systems that we know of,” she...