Do your homework. Yes, Biden was very tired. If I'd had to keep his schedule for the preceding three weeks, I'd have been TOTALLY exhausted. Way worse than Joe.
But what about Trump?? He just stood there and lied for an hour and a half. How could anyone have responded? Pathological liars are impossible to counter.
What you call a "Parkinson Doctor" had been visiting the White House consistently since 2012. He spends some of his time working in the WH medical office, which is large. The people there don't only treat the president and people who work in the WH. The staff also treats more than 1,000 people in the military.
No one has any idea who Cannard usually sees there:
O’Connor took the unusual step Monday night of releasing a letter offering some details about Cannard’s visits to the White House, following days of speculation about the president’s health, writing that “President Biden has not seen a neurologist outside of his annual physical.”
He wrote of Cannard: “Prior to the pandemic, and following its end, he has held regular Neurology Clinics at the White House Medical Clinic in support of the thousands of active-duty members assigned in support of White House operations,” adding, “Many military personnel experience neurological issues related to their service, and Dr. Cannard regularly visits the WHMU as part of this General Neurology practice.”
O’Connor described Cannard as the “neurological specialist that examined President Biden for each of his annual physicals” and noted the specialist’s findings were included each time he publicly released the results of the president’s physical.