dr david buchin is a medical analyst and a surgeon at huntington hospital. he joins us from new york. welcome to you. thanks very much for being with us. what do you make of president trump, who appears to look well, he walked unaided, wearing a mask, to the helicopter and from the helicopter into the hospital? what do you make of him being taken to hospital for treatment? i would assume they are taking every precaution with the american president because he is the president, obviously. we want to make him as comfortable and we want to heal him and take every precaution with him. his advanced age, he is 7a years old, and he is obese, so those are two major risk factors for him, so obviously even if he sneezed wrong, they were taken to the hospital. and he's being taken care to the hospital. and he's being ta ken care of to the hospital. and he's being taken care of at one of the best institutions in america, so, absolutely, they should do that. and meanwhile, they —— we understand he is being treated today with an experimental drug. what you know about that?