During a meeting with Republican leaders in Washington, US President-elect Donald Trump joked that he can't get rid of billionaire Elon Musk. "Elon won't go home...I can't get rid of him, at least until I don't like him," the 78-year-old Republican said. Musk and Indian-origin Vivek Ramaswamy were made the chiefs of the newly formed 'Department of Government Efficiency'.