 More and more speculation about the president's mental and physical state as well as what that could look like over the next four years. Let's bring in board-certified neurologist Dr. Russell Swarovski. Doctor, thank you so much for making the time for us. Let's get right to it. For the last four years, anybody who popped up and said that there is a clear decline mentally and physically with Joe Biden was called a conspiracy theorist. It's not that case any longer.