Discussing her children and husband in what was an intensely personal speech, she made an emotional case for Hillary Clinton.
She said Clinton "has the guts and the grace to keep coming back and putting those cracks in that highest and hardest glass ceiling until she finally breaks through, lifting all of us along with her."
"That is the story of this country, the story that has brought me to this stage tonight, the story of generations of people who felt the lash of bondage, the shame of servitude, the sting of segregation, but who kept on striving and hoping and doing what needed to be done so that today I wake up every morning in a house that was built by slaves," she said, growing visibly emotional.
"And I watch my daughters, two beautiful, intelligent, black young women playing with their dogs on the White House lawn.
"And because of Hillary Clinton, my daughters and all our sons and daughters now take for granted that a woman can be president of the United States."