Obama surprises an emotional Biden with the Presidential Medal of Freedom

President Barack Obama on Thursday awarded Vice President Joe Biden the Medal of Freedom, the highest US civilian award, in a surprise ceremony at the White House.

During a speech paying tribute to the vice president, Obama announced that he would award the final medal of his presidency to the vice president. It elicited audible gasps from the crowd there and caused an emotional, tearful Biden to turn away.

"Joe, for your faith in your fellow Americans, for your love of country, and for your lifetime of service that will endure through the generations, I'd like to ask the military aide to join us onstage," Obama said, before presenting the award.

Obama cited Biden's long career in the US Senate, as well as his work on issues like curbing domestic violence and sexual assault, on foreign policy, and on a campaign to cure cancer - particularly following the death of his son, former Delaware Attorney General Beau Biden, in 2015.

Choking up and becoming tearful at several points, Biden said he had "no inkling" he would be receiving the medal, and he praised Obama for allowing him to take a lead role in many key issues. 

"I also leaned on you and a lot of people in this room," Biden said.

"Mr. President, you have more than kept your commitment to me by saying that you wanted me to help govern," Biden said. "Every single thing you've asked me to do, Mr. President, you have trusted me to do. And that's a remarkable thing. I don't think ... that kind of relationship has existed."

Obama and Biden's close personal relationship has been well documented, even becoming an internet meme. Obama alluded to it when he referred to their relationship as a "bromance" during the ceremony.