A portion of the Montreal Cognitive Assessment, a 10-minute test designed to detect mild cognitive impairment such as the onset of dementia. (Courtesy of MoCA) Doubts about the mental fitness of President Biden and Donald Trump to hold the White House in ...

There's a line of thought that equates intelligence with “pattern recognition.” How do you stack up on this unique cognitive characteristic?

Trump gets a lot of things wrong when he talks about cognitive tests. He recently bragged to journalists that he “aced” one, and said the doctors at Walter Reed told him no president had taken a cognitive test before.

Donald Trump in West Palm Beach, Fla., on April 11, 2025. President Donald Trump, who has long dismissed concerns about his age and mental ability with bombastic declarations of his brilliance, said he “got every answer right” on a cognitive test that ...