Paul's wife went on to tell the story of Paul's upbringing, which makes no direct mention of Paul's famous father -- former presidential candidate Ron Paul who was in attendance but did not speak at Tuesday's announcement -- and instead focuses on Paul's relationship to his grandmother, who lost her vision as she aged. Paul was an avid coin collector as a child, and it was a hobby he shared with his grandmother.

"As her eyesight began to fail, he became her eyes to spy the faint mint marks on the coins as they would go through them together," Kelley says in the video. "Rand never forgot how sad it was for him to watch his grandmother lose her vision and that really cemented for him his desire to be an ophthalmologist."

To read the complete article, see:
Rand Paul Makes 2016 White House Bid Official: 'We Have Come To Take Our Country Back' (http://abcnews.go.com/Politics/rand-paul-makes-2016-white-house-bid-official/story?id=30135296)