An attendee holds a sign for Democratic presidential nominee Vice President Kamala Harris during a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Democratic presidential nominee Vice President Kamala Harris speaks during a campaign appearance Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Sam Morris)

Democratic presidential nominee Vice President Kamala Harris speaks at a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Attendees cheer during a rally for Democratic presidential nominee Vice President Kamala Harris on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Democratic presidential nominee Vice President Kamala Harris, second from left, greets people in the crowd after speaking at a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Democratic presidential nominee Vice President Kamala Harris speaks at a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Democratic presidential nominee Vice President Kamala Harris waves to the crowd as she arrives to speak at a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)

Democratic presidential nominee Vice President Kamala Harris speaks at a rally on Sunday, Sept. 29, 2024, in Las Vegas. (AP Photo/Carolyn Kaster)