Octogenarian President Biden has difficulty functioning outside a six-hour window of daylight, according to an alarming new report. The 81-year-old commander in chief is prone to absent-minded gaffes and fatigue outside of the hours of 10 a.m. to 4 p.m. or while traveling abroad, White House aides told Axios in a bizarre attempt to spin his disastrous debate performance. During the 90-minute trainwreck of a presidential debate — which kicked off five hours after the president’s peak performance window, at 9 p.m. — Biden often appeared vacant or slack-jawed, and on several occasions froze mid-thought, misspoke, or struggled to form...