 White House briefing devolves into shouting match, shouting over questions about Biden's health. And then finally, Matt, Dan Diamond and Yasmeen Abdullah in the Post, Parkinson's specialist evaluated Biden for physical, White House says. Byron, has the question simply been asked? Does the president have Parkinson's? Well, yeah, the question has been asked. And also, I think that Dr. O'Connor's letter, the one released last night, was pretty clear.