The Obamas two daughters, Sasha and Malia, joined their mother on stage after the speech as Stevie Wonder's "Isn't She Lovely" blared from in the convention hall.
Obama's mission was to humanize her husband and tell skeptical voters that he's not so differnt, despite his unusual name and exotic background.
"Barack and I set out to build lives guided by these values, and pass them on to the next generation," she said. Her address was the first big step in a weeklong effort to reassure dubious voters that the party's presidential nominee understands their problems and beliefs.
They know the public Barack Obama, the guy on magazine covers and nightly newscasts. His wife hoped to convince voters that he's a lot like they are, despite all the attention given to his African father, his childhood in Hawaii and Indonesia and the incendiary remarks of his former minister.
Obama has repeatedly faced questions about whether he's a "real" American.