Vice President Kamala Harris has been cemented as the Democratic presidential nominee after a majority of delegates selected her in a virtual roll call vote, the party announced Friday. In the coming weeks, Harris will look to build on a strong July in which her campaign raised $310 million. Robert Costa has the latest. The U.S. added just 114,000 jobs in July, below expectations, the Labor Department reported Friday, while the unemployment rate rose to 4.3%. Jo Ling Kent examines what is behind the slowdown. The Justice Department on Friday filed a federal lawsuit against TikTok and its parent company ByteDance, saying that the social media giant collected data on users under the age of 13 without getting the permission of their parents. Scott MacFarlane has details. A study by University of Miami researchers is seeking to understand more about how sharks interact with their ever-changing ocean home, and how pollution and warming waters are altering where sharks migrate, feed and give birth. Elaine Quijano explains.