This is the best summary I could come up with:

At a New Hampshire campaign rally, Donald Trump claimed to have “aced” a recent cognitive test and struggled to pronounce the word “climate,” footage from the event shows.

“I don’t know if you saw, but a few months ago, I took a cognitive test my doctor gave me,” Mr Trump told supporters at the Saturday event.

His comments came just after former South Carolina Governor Nikki Haley questioned whether the former president was mentally capable of taking office again after he appeared to repeatedly confuse her with former US House Speaker Nancy Pelosi in a campaign speech on Friday.

Dr Jonathan Reiner, a medical analyst for CNN and professor of medicine and surgery at the George Washington University School of Medicine and Health Sciences, called into question why Mr Trump would need multiple cognitive tests, considering he also took a cognitive test while serving as president.

In their post on cognitive testing, the Cleveland Clinic also states, “a good score doesn’t necessarily mean there’s no brain impairment.”

Slip-ups like these could continue to undercut the 77-year-old former President’s argument that Mr Biden — just four years his senior — is cognitively unfit for office.

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