Cindi Leive, Dr. Jill Biden, and Joe Biden speak onstage during Glamour Celebrates 2017 Women Of The Year Live Summit at Brooklyn Museum on November 13, 2017 in New York City. Getty Images
Senator Joe Biden with his sons Beau, left, and Hunter and his future wife Jill in an undated photo. AFP
US Senator Joseph Biden, D-Del., announces on September 23, 1987 that he is withdrawing from the race for the 1988 Democratic presidential nomination, as his wife Jill grasps his arm. AFP
US Senator Joseph Biden, D-Del., speaks on July 13, 1989 before a House of Representatives panel about flag burning. Biden, chairman of the Senate Judiciary Committee, told House members that his bill to outlaw flag burning was the best way to overcome the Supreme Court ruling which protects the action as a form of free speech. Other lawmakers insisted that only a onstitutional amendment would suffice. AFP
Sen. Joe Biden (D-DE) speaks to reporters in front of a Danish U.N. armoured personnel carrier at the airport in Sarajevo, Bosnia April 9, 1993. REUTERS
US Senator Joseph Biden, D-Del., speaks to reporters after meeting with US President Bill Clinton at the White House on February 10, 1995 to discuss Dr. Henry Foster's nomination for surgeon general. Calling Clinton's choice a "political blunder in teh extreme", Biden told reporters that the president should withdraw the nomination and move on. AFP
US President George W. Bush answers reporter's questions prior to a bipartisan meeting with congressional leaders in the Cabinet Room of the White House, 25 July 2001. Listening are Senator Joe Biden D-DE and Senator John Warner (R-VA). AFP
US Senators Ted Kennedy (L), D-MA, Joe Biden (C), D-DE, and Barbara Mikulski (R), D-MD, tour ground zero 20 September 2001 in New York, nine days after the destruction of the World Trade Center. AFP
Israel's Prime Minister Ariel Sharon laughs with Chairman of the Senate Foreign Relations Senator Joe Biden during a meeting at the US Capitol 11 June 2002. AFP
Colombian President Andres Pastrana is greeted 17 April, 2002, by Sen. Joe Biden, D-DE, chairman of the US Senate Foreign Relations Committee at the US Capitol in Washington, DC before Pastrana met with that committee. AFP
Lebanese Prime Minister Rafiq Hariri attends a meeting with Sen. Joe Biden, (D-DE), and other members of the US Senate Foreign Relations Committee 17 April 2002 at the US Capitol in Washington, DC. AFP
US Senator Joseph Biden Jr. (R-DE) hosts King Abdullah of Jordan and Queen Rania at a Senate Foreign Relations luncheon 08 May, 2002 during their visit to the US Capitol in Washington, DC. AFP
Democratic presidential hopefuls US Senator Joe Biden, US Senator Barack Obama and US Senator Hillary Rodham Clinton arrive at the Democratic Party Presidential Primary Debate, 26 April 2007, at South Carolina State University in Orangeburg, South Carolina. AFP
Demoratic Delaware Senator Joe Biden speaking with unidentified soldiers about the effectiveness and life-saving technology of the Mine Resistant Ambush Protected (MRAP) vehicle(rear) during a visit to Ramadi, Iraq, 06 September, 2007. AFP
Actress Angelina Jolie, Ambassador Richard Holbrooke, and Sen. Joseph Biden ,D-DE, take their seats before a Congressional briefing on Capitol Hill 28 September, 2005 in Washington, DC. AFP
US Democratic presidential candidate Illinois Senator Barack Obama, his wife Michelle, running mate Delware Senator Joe Biden with his wife Jill greet people gathered on the lawn of the Old State Capitol on August 23, 2008 in Springfield, Illinois. AFP
US Vice President Joe R. Biden waits for a meeting with US President Barack Obama and Pakistan's Prime Minister Nawaz Sharif in the Oval Office of the White House October 22, 2015 in Washington, DC. AFP
British Prime Minister David Cameron greets Joe Biden, the Vice President of the United States of America, at the UK ambassador's residence on July 20, 2010 in Washington, DC. AFP
US Senate Foreign Relations Committee Chairman Joseph Biden shakes hands with seven-year-old Gao Shan, the boy Biden proclaimed as the future president of China, during a visit to the village of Yanzikou, north of Beijing, 10 August 2001. AFP
US President Barack Obama awards Vice President Joe Biden the Presidential Medal of Freedom during a tribute to Biden at the White House in Washington, DC, on January 12, 2017. AFP
U.S. President Barack Obama, front, embraces U.S. Vice President Joe Biden after his farewell address in Chicago, Illinois, U.S., on Tuesday, Jan. 10, 2017. Obama blasted "zero-sum" politics as he drew a sharp contrast with his successor in his farewell address Tuesday night, acknowledging that despite his historic election eight years ago his vision for the country will exit the White House with him. Bloomberg
Cindi Leive, Dr. Jill Biden, and Joe Biden speak onstage during Glamour Celebrates 2017 Women Of The Year Live Summit at Brooklyn Museum on November 13, 2017 in New York City. Getty Images
Senator Joe Biden with his sons Beau, left, and Hunter and his future wife Jill in an undated photo. AFP
US Senator Joseph Biden, D-Del., announces on September 23, 1987 that he is withdrawing from the race for the 1988 Democratic presidential nomination, as his wife Jill grasps his arm. AFP
US Senator Joseph Biden, D-Del., speaks on July 13, 1989 before a House of Representatives panel about flag burning. Biden, chairman of the Senate Judiciary Committee, told House members that his bill to outlaw flag burning was the best way to overcome the Supreme Court ruling which protects the action as a form of free speech. Other lawmakers insisted that only a onstitutional amendment would suffice. AFP
Sen. Joe Biden (D-DE) speaks to reporters in front of a Danish U.N. armoured personnel carrier at the airport in Sarajevo, Bosnia April 9, 1993. REUTERS
US Senator Joseph Biden, D-Del., speaks to reporters after meeting with US President Bill Clinton at the White House on February 10, 1995 to discuss Dr. Henry Foster's nomination for surgeon general. Calling Clinton's choice a "political blunder in teh extreme", Biden told reporters that the president should withdraw the nomination and move on. AFP
US President George W. Bush answers reporter's questions prior to a bipartisan meeting with congressional leaders in the Cabinet Room of the White House, 25 July 2001. Listening are Senator Joe Biden D-DE and Senator John Warner (R-VA). AFP
US Senators Ted Kennedy (L), D-MA, Joe Biden (C), D-DE, and Barbara Mikulski (R), D-MD, tour ground zero 20 September 2001 in New York, nine days after the destruction of the World Trade Center. AFP
Israel's Prime Minister Ariel Sharon laughs with Chairman of the Senate Foreign Relations Senator Joe Biden during a meeting at the US Capitol 11 June 2002. AFP
Colombian President Andres Pastrana is greeted 17 April, 2002, by Sen. Joe Biden, D-DE, chairman of the US Senate Foreign Relations Committee at the US Capitol in Washington, DC before Pastrana met with that committee. AFP
Lebanese Prime Minister Rafiq Hariri attends a meeting with Sen. Joe Biden, (D-DE), and other members of the US Senate Foreign Relations Committee 17 April 2002 at the US Capitol in Washington, DC. AFP
US Senator Joseph Biden Jr. (R-DE) hosts King Abdullah of Jordan and Queen Rania at a Senate Foreign Relations luncheon 08 May, 2002 during their visit to the US Capitol in Washington, DC. AFP
Democratic presidential hopefuls US Senator Joe Biden, US Senator Barack Obama and US Senator Hillary Rodham Clinton arrive at the Democratic Party Presidential Primary Debate, 26 April 2007, at South Carolina State University in Orangeburg, South Carolina. AFP
Demoratic Delaware Senator Joe Biden speaking with unidentified soldiers about the effectiveness and life-saving technology of the Mine Resistant Ambush Protected (MRAP) vehicle(rear) during a visit to Ramadi, Iraq, 06 September, 2007. AFP
Actress Angelina Jolie, Ambassador Richard Holbrooke, and Sen. Joseph Biden ,D-DE, take their seats before a Congressional briefing on Capitol Hill 28 September, 2005 in Washington, DC. AFP
US Democratic presidential candidate Illinois Senator Barack Obama, his wife Michelle, running mate Delware Senator Joe Biden with his wife Jill greet people gathered on the lawn of the Old State Capitol on August 23, 2008 in Springfield, Illinois. AFP
US Vice President Joe R. Biden waits for a meeting with US President Barack Obama and Pakistan's Prime Minister Nawaz Sharif in the Oval Office of the White House October 22, 2015 in Washington, DC. AFP
British Prime Minister David Cameron greets Joe Biden, the Vice President of the United States of America, at the UK ambassador's residence on July 20, 2010 in Washington, DC. AFP
US Senate Foreign Relations Committee Chairman Joseph Biden shakes hands with seven-year-old Gao Shan, the boy Biden proclaimed as the future president of China, during a visit to the village of Yanzikou, north of Beijing, 10 August 2001. AFP
US President Barack Obama awards Vice President Joe Biden the Presidential Medal of Freedom during a tribute to Biden at the White House in Washington, DC, on January 12, 2017. AFP
U.S. President Barack Obama, front, embraces U.S. Vice President Joe Biden after his farewell address in Chicago, Illinois, U.S., on Tuesday, Jan. 10, 2017. Obama blasted "zero-sum" politics as he drew a sharp contrast with his successor in his farewell address Tuesday night, acknowledging that despite his historic election eight years ago his vision for the country will exit the White House with him. Bloomberg
Cindi Leive, Dr. Jill Biden, and Joe Biden speak onstage during Glamour Celebrates 2017 Women Of The Year Live Summit at Brooklyn Museum on November 13, 2017 in New York City. Getty Images