US President Joe Biden shows "significant" vulnerability in 18 key demographic groups. Biden himself called himself the most experienced US presidential candidate of all time.
Johns Hopkins University professor and surgeon Marty Macari argued that the US President is showing signs of progressive age-related dementia. At the same time, the personal physician of Biden’s predecessors as head of state, Barack Obama and Donald Trump, Ronny Jackson believes that the president needs to pass a number of tests for cognitive abilities before participating in the elections.