Democratic vice presidential nominee Minnesota Gov. Tim Walz speaks at a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)

Democratic vice presidential nominee Minnesota Gov. Tim Walz, left, is introduced by his former student Aubri Faustman at a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)

Democratic vice presidential nominee Minnesota Gov. Tim Walz speaks at a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)

Democratic vice presidential nominee Minnesota Gov. Tim Walz waves to the crowd outside after a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)

Supporters of Democratic vice presidential nominee Minnesota Gov. Tim Walz cheer after a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)

Democratic vice presidential nominee Minnesota Gov. Tim Walz speaks at a campaign rally, Saturday, Aug. 17, 2024, at The Astro in La Vista, Neb. (AP Photo/Bonnie Ryan)