Democratic presidential nominee Vice President Kamala Harris and her running mate Minnesota Gov. Tim Walz speak at a campaign rally in Philadelphia, Tuesday, Aug. 6, 2024. (AP Photo/Joe Lamberti)

Democratic presidential nominee Vice President Kamala Harris and her running mate Minnesota Gov. Tim Walz arrive at a campaign rally in Philadelphia, Tuesday, Aug. 6, 2024. (AP Photo/Matt Rourke)

Democratic presidential nominee Vice President Kamala Harris and her running mate Minnesota Gov. Tim Walz arrive at a campaign rally in Philadelphia, Tuesday, Aug. 6, 2024. (AP Photo/Joe Lamberti)