It all began when Barack Obama asked Joe Biden to be his running mate for the 2008 United States Presidential elections. Michelle Obama did not involve herself in the decision-making,. Still, once she was informed of her husband's choice, she immediately approved, "You want people you can hang out with, that you trust, that you sit down and have a good conversation with, in addition to the advice, guidance, and wisdom he brings," she shared in an interview with People. 

Joe Biden broke the news of his vice-presidency run to his family during Maisy Biden's 8th birthday party. The rest of the Biden clan was excited to hear the news while Maisy, on the other hand, responded as any eight-year-old probably would, and said, "Pop, can I have some more ice cream cake?"

Obama and Biden's working relationship blossomed into a strong friendship between their families. They are both extremely family-oriented, which meant a lot of trips together and a lot of face time between their families. They weren't the only ones that emulated relationship goals, "If you think those guys have chemistry – I think we have chemistry," Jill Biden shared with People on her relationship with Michelle Obama. The younger Obama-Biden duo have yet to speak publicly of their friendship. If the relationship of their older counterparts is any indicator — they probably have a great friendship.