Former U.S. First Lady Michelle Obama delivered a powerful speech at the Democratic National Convention underway in Chicago, rallying the country around the candidacy of Kamala Harris, who is poised to become the first Black and South Asian woman to secure a major party's nomination for the presidency. Mrs. Obama, a reluctant campaigner, enthralled a packed arena and lent firepower to Vice President Kamala Harris’s presidential campaign. She offered support and praise for Harris, and also blasted Donald Trump. Watch the most emotional speech of Michelle in years.