Flowers and tributes are left on the Nelson Mandela statue on Parliament Square in London December 6, 2013. South African anti-apartheid hero Mandela died peacefully at home at the age of 95 on Thursday after months fighting a lung infection, plunging his nation and the world into mourning for a man revered as a moral giant. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SOCIETY POLITICS OBITUARY)
African National Congress (ANC) president Nelson Mandela stares out of the window of the prison cell he occupied on Robben Island for much of his 27 year incarceration, February 11, 1994. (Getty Images)
There may come a day when President Barack Obama has to say whether he’d rather hand the keys to the White House to Vice President Joe Biden or former secretary of state Hillary Clinton. That day is not today.