 I want him to do whatever he decides to do. And that's the way it is. Whatever he decides, we go with. The California Democrat answered questions today about the president's mental fitness to serve another term in the Oval Office. Biden says he's already decided that he's going nowhere. Former President Trump is teasing Florida Senator Marco Rubio as his potential running mate. Rubio addressed the crowd at Trump's rally in Florida Tuesday, with Trump making multiple references to Rubio throughout his speech.