During the recent presidential campaign the candidates spoke at nauseam on how to create and retain middle class jobs. During my career as a labor leader I saw firsthand the effects of public and private investment in infrastructure and manufacturing. Infrastructure improvements put construction professionals to work right away and provided businesses with improved ways to ship their products. According to a recent study by Duke University, for each $1 billion invested in transportation infrastructure, 21,671 jobs are created and every dollar invest in transportation infrastructure returns $3.54 in economic impact.