"Of course it's legal. It's a war. Until the war is over, anything is legal," Giuliani said. "That oil becomes a very critical issue. First of all, if that oil wasn't there, we wouldn't have the Islamic State. So when (Trump) says thing like, Obama and Hillary were the founder of the Islamic State, he doesn't mean literally that. He follows it by saying, they would get the MVP award. That oil is what makes the Islamic State so rich."