PHILADELPHIA — First lady Michelle Obama delivered a powerful character witness on behalf of the Democratic Party’s nominee, Hillary Clinton, and urged her party to not be complacent.

“I’m here because in this election, there is only one person who I trust with that responsibility and only one person who is truly qualified to be president of the United States, and that is our friend Hillary Clinton,” Obama said. “I want someone who has the proven strength to persevere.”

“When she didn’t win the nomination eight years ago, she didn’t get angry or disillusioned. Hillary did not pack up and go home because as a true public servant she knows this is so much bigger than her own desires and disappointments. She proudly stepped up to serve this country once again . . .

“She never buckles under pressure . . . Hillary Clinton has never quit on anything in her life.”

Her girls were 7 and 10 years old when they first went off to school from the White House in SUVs and with men carrying guns, she said. The Obamas had to show their daughters how to ignore people who questioned her husband’s citizenship and faith.

“Our motto is when they go low, we go high . . . we know our words and actions matter not just to our girls but to kids across this country,” she said. “This November when we get to the polls . . . in this election it’s about who will have the power to shape our children for the next four or eight years of their lives.”

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Obama warned that the party must work as hard as they did to elect her husband four and eight years ago to elect Clinton.

“In this election, we cannot sit back and hope that everything works out for the best,” Obama said. “We cannot afford to be tired or frustrated or cynical.”

The crowd rose to their feet, and delegates called out, “We love you Michelle!” after a speech that was the most well-received at that point in the night.

At another point, Obama grew emotional reflecting on Clinton’s potential to be the first woman president in the country’s history.

“Because of Hillary Clinton my daughters can now take for granted that a woman can be president of the United States,” she said, her voice breaking with emotion.

With Bart Jones