“He needs more than one screening test... He needs a whole series of cognitive tests, objective, documented and brought to the American people by his doctor,” the New York Post quotes him as saying.
Jackson emphasized that he is not calling Biden sick, for example, with Alzheimer's disease. According to the expert, the problems of the American leader are due to his age.
Fox News previously reported that congressmen demanded that US President Joe Biden take a cognitive ability test.
Biden called himself the most experienced US presidential candidate of all time and said he was in the prime of his life.
As of late April, Joe Biden's job approval rating as president has fallen to a record low of 37% since his inauguration.