Dr. John Gartner, founder of "Duty To Warn," is back with Rick, Stuart, and Joe to discuss what to keep an eye out for in Thursday's debate. Yeah, Joe Biden is old and shows normal physical and mental signs of aging. Trump, as Dr. Gartner explains, has significant cognitive deterioration consistent with dementia. How do you spot the differences? Well...it has something to do with sharks, water pressure, flies, and someone not named Biden thinking he ran against Barack Obama in 2020. Dr. Gartner will give us the 411 on what to watch for - Tuesday at 7 PM ET.