Trump took another page from his "Best Defense is a Good Offense Playbook" Monday when he challenged Vice President Kamala Harris to take a cognitive test.

Former President Trump called for Vice President Kamala Harris to take a cognitive test after she pressed him to match her release of medical records.

Kamala Harris responded to Donald Trump's calls for a cognitive test and argued the former president is 'unfit' to serve again.

“I believe it is very important that Kamala Harris pass a test on Cognitive Stamina and Agility,” the Republican candidate, 78, fired off in a Truth Social post.

Kimmel called out the former president for his obsession over Harris’ mental acuity and demands on social media that she “pass a test on cognitive stamina and agility.” ...

Former President Trump said Monday that Vice President Harris should take a cognitive test, as the Harris campaign hammers him for his refusal to release his own detailed medical records and ...

Kamala Harris responded to Donald Trump's calls for a cognitive test and argued the former president is 'unfit' to serve again.