Vice President Joe Biden acknowledges his son Beau Biden, Attorney General of Delaware who placed his father's name in nomination for Vice President on the night that President Barack Obama accepts his party's nomination for a second term as President of the United States at the Democratic National Convention in the Time Warner Cable Arena in Charlotte, N.C., on Thursday, September 6, 2012. (Barbara Salisbury/ The Washington Times)

Photo by: Barbara Salisbury

Vice President Joe Biden acknowledges his son Beau Biden, Attorney General of Delaware who placed his father's name in nomination for Vice President on the night that President Barack Obama accepts his party's nomination for a second term as President of the United States at the Democratic National Convention in the Time Warner Cable Arena in Charlotte, N.C., on Thursday, September 6, 2012. (Barbara Salisbury/ The Washington Times)