David Leonhardt is an Op-Ed columnist at The New York Times. Prior to joining the Opinion department, Mr Leonhardt was the founding editor of The Upshot section, which emphasizes data visualization and graphics to offer an analytical approach to the day's news. Mr Leonhardt has also served as Washington bureau chief and wrote 'Economic Scene,' a weekly economics column, for the Business section. In 2011, he won the Pulitzer Prize for Commentary for his columns.