President Donald Trump claims he aced his third cognitive test and questions whether former Vice President Kamala Harris, ...

President Donald Trump told a room full of Republicans that Gov. Gavin Newsom couldn't pass a cognitive test. "Let's do it," ...

The late-night host explained that he took the test "in the interest of fairness" and to "get a sense of what he [Trump] ...

Greater perceived neighborhood cohesion in childhood (measured at age 10) and at the time of the baseline interview (measured among people ranging in age from 51 to 89, or among people from late ...

Trump faces growing health concerns, with reports of mobility struggles and fears of removal under the 25th Amendment ...