The former Republican Vice Presidential candidate has encountered a few foes while promoting his new book.
The second-place finisher in the last presidential race railed against the frontrunner in the next.
The president and former secretary of state are due to sort their differences through a 'hug out'.
In 2008, Obama was seen as more likable than Clinton. Six years later, the tables have turned.
6.1 million viewers tuned in for interview with former secretary of state.
Former president scoffs at former George W. Bush adviser's statement about Hillary Rodham Clinton and " traumatic brain injury."
The former secretary of state added that Putin’s “political vision is of a greater Russia."
But one of them believes Clinton still deserves blame for the deterioration of the U.S.-Russian relationship.
"To hear the two of them making these admissions, and in front of me, was as surprising as it was dismaying," Gates writes in his new memoir.
Hillary Rodham Clinton paid tribute to the life of Nelson Mandela on Friday morning, calling the late South African leader "a giant among us."