Trump campaigns on the US-Mexico border, drawing a contrast to Harris' policies

The transcript covers former President Donald Trump's campaign activities, focusing on his visit to Cochise County, Arizona, along the US-Mexico border. Trump attempts to draw a comparison between himself and Vice President Kamala Harris, criticizing her border policies and accusing her of being a failed border czar. He argues that Harris's stance on the border wall is politically motivated. The Democratic National Convention responds by accusing Trump of using immigration to demonize immigrants.

What does Trump suggest about Kamala Harris's intentions regarding building the wall?

How does Trump characterize the current state of borders and elections?