 Donald Trump Jr. already on social media saying if Biden isn't fit to run, he isn't fit to be president. There is now a call among Republicans to say that he needs to step aside right now. ABC's Stephen Portnoy, this catches the Trump campaign a bit off guard, but they had a statement ready to go and they knew that this was probably coming. Well, the reality of the situation, politically speaking, was that the pressure was only going to build. And so the Trump campaign has been working to prepare for this moment.