The White House has a new economist who in the past downplayed the economic effect of tariffs imposed by the administration, claiming they are “the only negotiating tool we effectively have” with China. The White House on Wednesday announced that Joseph Lavorgna had joined the administration as a special assistant to the president and chief economist of the National Economic Council. Lavorgna was previously the chief economist of the Americas for Natixis, a French corporate and investment bank. He previously...