Republican National Committee chairman Michael Whatley reacts to President Biden dropping out of the presidential race. FIRST ON FOX: After President Joe Biden’s announcement on Sunday that he is dropping out of the 2024 presidential race, two doctors shared thoughts with Fox News Digital about what this means in terms of Biden's ongoing cognitive health. Looking back, some experts believe the path to Biden’s dropout began with what was widely described as a disastrous debate performance in late June, during which the president seemed to display an unclear train of thought and a lack of coherence.

"President Biden has shown signs of cognitive impairment for many years," Dr. Brett Osborn, a Florida neurosurgeon who specializes in cognitive function, told Fox News Digital on Sunday. He has not treated Biden or advised him.

JOE BIDEN WITH COVID AT AGE 81: WHAT TO KNOW ABOUT THE RISK THE VIRUS POSES TO OLDER ADULTS "It is medically probable that when he took office in 2020, he was afflicted by mild cognitive impairment (MCI), a gateway syndrome to Alzheimer’s disease and potentially Parkinsonism (not necessarily Parkinson’s disease itself)," Osborn said. "And he has only deteriorated since then, as is typical of those with neurodegenerative diseases." ‘Prudent’ decision Given signs of his "ailing cognitive status, President Biden's decision to step down from the race seems prudent," said Osborn, expressing his professional opinion.

"By stepping down, President Biden c.