Former President Barack Obama speaks during a campaign rally supporting Democratic presidential nominee Vice President Kamala Harris, Thursday, Oct. 10, 2024, at the University of Pittsburgh's Fitzgerald Field House in Pittsburgh. (AP Photo/Matt Freed)

Democratic presidential nominee Vice President Kamala Harris speaks at a campaign event Friday, Oct. 11, 2024, at the Grayhawk Golf Club in Scottsdale, Ariz. (AP Photo/Ross D. Franklin)

Democratic vice presidential nominee Minnesota Gov. Tim Walz speaks during a campaign event, Friday, Oct. 11, 2024, in Warren, Mich. (AP Photo/Carlos Osorio)