 Louisiana Radio Network, I'm Jeff Palermo. Former President Barack Obama and Speaker of Merida Nancy Pelosi joined several Democratic lawmakers who have publicly or privately said Joe Biden should drop out of the presidential race due to concerns about his mental capabilities. ULM political science professor Pearson Cross. I think as the pressure heats up and it'll very likely that he'll come to a crisis and he'll have to make a decision. It's unclear what direction he'll decide.