MSNBC reporter Garrett Haake attempted to press Trump during a stop in Valdosta, Georgia, asking him what, if any, evidence he had to back up his outlandish claim. “Take a look,” Trump responded, walking away. Haake translated the flippant response to mean, “essentially, I’ve got nothing to show you right now, why don’t you go find it yourself.”

Cayce Myers, a professor at Virginia Tech’s School of Communication, said Gov. Tim Walz’s effectiveness “remains to be seen."

Donald Trump named Ohio Senator JD Vance as his vice-presidential nominee in July. Vance will debate Democratic vice-presidential candidate Tim Walz on Tuesday evening in New York. Vance, a Yale-educated venture capitalist and author of the bestselling memoir-turned-film Hillbilly Elegy,