**FILE** Vice President Joseph R. Biden reacts Jan. 21, 2013, with his wife, Jill, as they walk down Pennsylvania Avenue en route to the White House during the 57th presidential inauguration parade after the ceremonial swearing-in of President Obama. (Associated Press)
**FILE** Vice President Joseph R. Biden reacts Jan. 21, 2013, with his wife, Jill, as they walk down Pennsylvania Avenue en route to the White House during the 57th presidential inauguration parade after the ceremonial swearing-in of President Obama. (Associated Press)
President Barack Obama and wife Michelle is holds hands with Vice President Joe Biden and his wife Jill following Obama's victory speech to supporters in Chicago early Wednesday, Nov. 7 2012. (AP Photo/Jerome Delay)
Democrat Joe Donnelly celebrates with his wife Jill after winning the U.S. Senate seat over Republican Richard Mourdock at an election night celebration in Indianapolis, Tuesday, Nov. 6, 2012. (AP Photo/Michael Conroy)
** FILE ** Air Force Two touches down as Vice President Joseph R. Biden and his wife, Jill, arrive in Charlotte, N.C., on Tuesday, Sept. 4, 2012, for the Democratic National Convention. (AP Photo/Gerry Broome)
** FILE ** Air Force Two touches down as Vice President Joseph R. Biden and his wife, Jill, arrive in Charlotte, N.C., on Tuesday, Sept. 4, 2012, for the Democratic National Convention. (AP Photo/Gerry Broome)
Vice President Joseph R. Biden Jr., and his wife, Jill, arrive in Charlotte, N.C., on Sept. 4, 2012, to attend the Democratic National Convention. (Associated Press)
Vice President Joseph R. Biden Jr., and his wife, Jill, arrive in Charlotte, N.C., on Sept. 4, 2012, to attend the Democratic National Convention. (Associated Press)
Vice President Joseph R. Biden and his wife, Jill, arrive in Charlotte, N.C., Tuesday for the Democratic National Convention. His enthusiasm and joviality are seen as assets. (Associated Press)
