CEDAR RAPIDS — U.S. Senate candidate Bruce Braley wants a national manufacturing strategy to coordinate government investments in science and technology with the innovation of the private sector.“The European Union has one. China has one. All of our global competitors have one,” the Waterloo Democrat told The Gazette Editorial Board Wednesday.Although Iowa has long been known for its strong manufacturing economy, Braley said the manufacturing base has deteriorated.“One reason for that is that we haven’t placed a great enough emphasis on training people for good-paying jobs in manufacturing,” the four-term U.S.