President Donald Trump and California Gov. Gavin Newsom are now publicly sparring over cognitive fitness, after Trump ...

Nikki Haley, former ambassador to the United Nations, speaks at the Susan B. Anthony Pro-Life America headquarters in Arlington, Va., on April 25. (Al Drago/Bloomberg via Getty Images) Since ...

The late-night host scored a perfect 30/30 on the Montreal Cognitive Assessment during a segment titled "Is Jimmy Kimmel a ...

Donald Trump said he 'aced' a cognitive test 'for the third straight time' as the 79-year-old president defended his mental ...

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

Terming the exam as the 'Donald Trump cognitive test', Kimmel said the assessment was "as difficult as the maze on the back ...

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Since announcing her candidacy for president in next year's contest, Nikki Haley has repeatedly called for making "mental competency tests" compulsory for politicians over the age of 75. On Monday, ...