US Vice President Joe Biden greets customers as he shops during a visit to a Costco store in Washington, DC, on November 29, 2012. Biden made the visit to the first Costco store located in Washington, DC, during its grand opening. AFP PHOTO / Saul LOEB
Vice President Joe Biden smiles during the vice presidential debate at Centre College October 11, 2012 in Danville, Kentucky. This is the second of four debates during the presidential election season and the only debate between the vice presidential candidates before the closely-contested election November 6.
U.S. President Barack Obama and Vice President Joe Biden share a laugh as the US Senior Men's National Team and Brazil play during a pre-Olympic exhibition basketball game at the Verizon Center on July 16, 2012 in Washington, DC.
Vice President of the United States Joe Biden smiles as he stands at midfield during the coin toss before a game between the Army Black Knights and the Navy Midshipmen on December 8, 2012 at Lincoln Financial Field in Philadelphia, Pennsylvania.
Sen. Dean Heller (R-NV) (L), his wife Lynne Heller and daughter Hilary Ableser laugh at a joke told by Vice President Joe Biden after Heller's mock swearing-in in the Old Senate Chamber at the U.S. Capitol May 9, 2011 in Washington, DC. Appointed to the senate by Gov. Brian Sandoval, Heller replaced Sen. John Ensign, who resigned last week amid an investigation of ethics violations.
Ashton Carter (R) makes remarks after he was sworn in as U.S. Secretary of Defense as his wife Stephanie (2nd L) Vice President Joe Biden (L) listen February 17, 2015 in the Roosevelt Room of the White House in Washington, DC. Carter has become the 25th U.S. Secretary of Defense.
Secretary of State Hillary Clinton (L) and British Prime Minister David Cameron laugh as Vice President Joe Biden (R) makes a joke about asking his Irish ancestors for forgiveness for hosting Cameron for lunch at the State Department on March 14, 2012 in Washington, DC. Cameron is on an official visit to Washington, where President Obama will host him at a State Dinner tonight.
Vice President Joseph Biden waits for the arrival of Prime Minister Enda Kenny of Ireland, at the Naval Observatory, on March 14, 2014 in Washington, DC. Vice President Biden hosted a breakfast for the Irish Prime Minister in honor of St. Patricks Day on Sunday.
Vice President Joseph Biden speaks during a White House Clean Energy Investment Summit June 16, 2015 in the Eisenhower Executive Office Building in Washington, DC. The White House held the summit to announce commitments from organizations to fight climate change and new executive actions to encourage private-sector investments in clean energy innovation.