Article continues below"Take a good look at Donald Trump today, because that's the best Donald Trump you're ever going to see," prominent psychotherapist Dr John Gartner tells the Express. View 4 Images President Donald Trump talks to reporters from the Oval Office. Biden was basically benign and wasn't a danger in the way Trump is, because Trump's dementia will keep escalating." There's memory loss, but the bigger issue is the disinhibition of behaviour, and that is what is most dangerous for President Trump. Yet White House spokesperson Liz Huston maintains: "President Trump is the sharpest, most accessible, and energetic president in modern American history."