President Biden is facing calls to undergo cognitive testing and release the results after his disastrous debate last month, and amid a series of reports about his apparent decline in recent months… ...

Learn what cognitive tests are, what symptoms might prompt a cognitive test, what the results mean, and what it is like to get a cognitive test done.

This is the most recent time the former president has claimed to have passed a cognitive test, which experts say are simple exams meant to test for brain function problems.