 From 1995 to 2004, he worked at the United States Department of Justice in Philadelphia, first as Counsel to the Office of Policy Development and later as a federal prosecutor in the U.S. Attorney's Office.In 2004, he became a partner in the law firm of Bifferato, Gentilotti, Biden & Balick, where he worked for two years before being elected Delaware attorney general.At the 2008 Democratic National Convention, after Joe Biden was nominated for Vice President of the United States, Beau introduced his father.