Elon Musk, Vivek Ramaswamy to lead Trump's Department of Government Efficiency President-elect Trump announced that billionaire Elon Musk and former GOP presidential candidate Vivek Ramaswamy will lead the Department of Government Efficiency. ➤ Trump Picks John Ratcliffe To Lead CIA ➤ Trump nominates Fox News host, veteran Pete Hegseth for secretary of defense ➤ Trump picks Rep. Matt Gaetz as attorney general