Friday on the News Hour, the presidential race kicks into high gear after Kamala Harris formally accepts her party's nomination. The head of the Federal Reserve says "the time has come" to cut interest rates amid lower inflation and signs of a weakening job market. Plus, Judy Woodruff examines how delegates at the Republican and Democratic conventions reflect the nation's larger political divides. PBS News is supported by - https://www.pbs.org/newshour/about/funders