If you look back you can see Trump's security first push him to the podium floor and then, after more security declared it was clear, he was lifted up, bundled down the stairs and across into the van. His head was exposed only briefly when he wanted to signal to the crowd that he was OK. He should have not tried to do that but that is Trump, and his security team found out, for a second or two, how much strength he still has.
Nonsense back..