WASHINGTON (AP) If he wins next months election, Donald Trump would be the oldest person in U.S. history to be elected president. Yet the 78-year-old Republican nominee refuses to disclose new details about his physical or mental well-being, breaking decades of precedent.

There have been limited snapshots of Trumps health over the last year. After he survived an attempted assassination in July, Texas Rep. Ronny Jackson , a staunch supporter who served as his White House physician, wrote a memo describing a gunshot wound to Trumps right ear. And last November, Trumps personal physician, Dr. Bruce Aronwald, wrote a letter describing him as being in excellent health with exceptional cognitive exams. He noted that cardiovascular studies are all normal and cancer screening tests were negative. Trump had also reduced his weight.

But those communications didnt address more fundamental questions about Trumps health, including his blood pressure, exact weight or whether he has continued using previously prescribed medication for high cholesterol or even what testing he underwent. His campaign has also not disclosed whether Trump has been diagnosed with any diseases or received any mental health care after the assassination attempt.

Thats giving his political adversaries, including Democratic rival Kamala Harris , an opportunity to raise questions about his age and ability to execute the duties of the presidency into his 80s.

It makes you wonder: Why does his staff want him to hide away? Harris asked recently as she needled Trump for withholding medical records, opting against another debate and skipping an interview with CBS 60 Minutes. One must question: Are they afraid that people will see that he is too weak and unstable to lead America? Is that whats going on?

Trumps doctors have long been opaque about his health, such as when his team at the White House initially downplayed the severity of his 2020 hospitalization for COVID-19.

His representatives ignored multiple requests from The Associated Press to provide more detailed information about his status for this story.

Drawing a contrast with Trump

In an effort to draw a contrast with Trump, Harris released a letter from her doctor on Saturday that went into far more detail about her medical history, including a list of exams and the results. The letter said she has no heart, lung or neurological disorders, is at low risk for heart disease and up-to-date on cancer screenings. She takes medication for allergies and hives. She wears contact lenses, and her only surgery occurred at age 3, when her appendix was removed during an intestinal-related procedure.

While the letter didnt specify her weight, the 59-year-old vice president was declared to be in excellent health and to possess the physical and mental resiliency required to serve as president.

Sensing an opportunity to put Trump on the defensive, the Harris campaign on Monday released a letter from more than 250 doctors and other medical professionals calling on Trump to release his medical records.

Still, its unclear that age will be a significant factor for voters. Polls found that voters were significantly less concerned about Trumps mental capacity and physical health than they were about President Joe Biden s when he was still in the race. Since Harris replaced Biden on the ticket, Trumps advantage on the issue has diminished.

And so far, the Lincoln Project is among the few anti-Trump groups spending money on ads that focus on Trumps age. An ad titled One Old Man describes Trump as weak, impotent, forgetful, mentally declining fast.

Such messages are designed to irritate Trump as much as move voters against him, said Lincoln Project co-founder Rick Wilson.

We do these ads because Trump hates them, Wilson said.

The dynamic is ironic for Trump, who spent years assailing the 81-year-old Bidens age, depicting him as frail and unable to manage the challenges of the presidency. After a disastrous debate performance in June, Bidens fellow Democrats began openly raising similar concerns , ultimately prompting his decision to withdraw from the race and back Harris.

Theres no requirement that candidates release health data. But presidential nominees traditionally disclose medical records voluntarily given the demands of the job, particularly if there are concerns about their age.

In 2008, Republican nominee John McCain opened more than 1,000 pages of medical documents for the public to examine. At 72, he would have been the oldest president elected to a first term. Facing scrutiny over his advanced age in 2019, the then-77-year-old Biden released a three-page note from his doctor.

In an era where were having ever older individuals running for or being president, it seems to me it should be less acceptable, frankly, to have such little information, said Dr. Eric Lenze of Washington University in St. Louis, a geriatric psychiatrist who evaluates cognition in older adults.

The last thorough report on Trumps health came in 2019, when he was still president. That checkup classified him as obese with a weight of 243 pounds and a body mass index of 30.4, which raises the risk of heart disease, diabetes and other problems. That report also revealed increased dosages of medication for high cholesterol. While Trump doesnt drink alcohol or smoke, he has long avoided exercise other than golf and loves fast food.

As for his family history, his father had Alzheimers disease late in life, one potential risk factor.

Trumps allies point to his active public lifestyle as evidence that hes not on the decline.

Trump is a frequent golfer and an engaged host during social functions. He takes questions from the press far more often than Harris. He often speaks for more than 90 minutes at his rallies, standing the entire time and often ignoring the teleprompter.

Trump often rambles through his public appearances

Still, Trumps public appearances are often marked by rambling. He regularly confuses timelines, events and people.

At a town hall-style forum in Fayetteville, North Carolina, Trump seemed to have no recollection of meeting with a severely injured veteran and his family. The veterans wife noted that you visited with him many times and you just saw him this summer.

Trump has also confused Republican rival Nikki Haley with former Democratic House Speaker Nancy Pelosi . He confused the location of a major military base. He mistakenly said that Hungarian Prime Minister Viktor Orbn led Turkey.

During a meandering news conference riddled with false and misleading statements in August, Trump recalled riding as a passenger in the chopper with former San Francisco Mayor Willie Brown when it was forced to make an emergency landing.

Brown later said he had never shared a helicopter with Trump. Instead, it was likely a Los Angeles city councilman, who is also Black, who shared a rocky helicopter ride with Trump decades earlier.

And more recently, at a rally in Wisconsin, he seemed to squint at teleprompters as he lurched from subject to subject. He described the country as a third-world hellhole. He then told his audience, Remember, theres a hat thats made that sells like crazy, before interrupting himself to comment on a fly.

Oh theres a fly, I wonder where the fly came from. See, two years ago, I wouldnt have had a fly up here. Youre changing rapidly, Trump said.

He has begun boasting about his beautiful body and describes his often long-winded speeches as flawless.

Trump regularly acknowledges questions about his age and health during public appearances. On Sunday in Arizona, Trump mocked critics who declare him cognitively impaired because he mispronounced a word.

They say, Hes cognitively impaired! Trump teased. No, Ill let you know when I will be. I will be someday we all will be someday. Ill be the first to let you know.

The AP consulted with several medical experts, but none would comment specifically on Trumps overall health or cognitive abilities without having examined him or having access to recent medical records.

John R. Beard, director of the International Longevity Center at Columbia University, ticked off what could be red flags for cognitive issues during aging, including unusual speech patterns and rambling.

People can jump from one thought to another without there being any logical link between them, and then tend to go on at length about an issue without really it being tied in with the key argument, Beard said. But some people may have displayed such traits for years, so the questions are whether theyre worsening or impair performance, he added.

Earlier this year, the science news organization STAT asked a handful of aging experts to analyze clips of Trumps speeches. They reported several troubling changes since 2017, including an increase in confused word order, repetition and whats called all-or-nothing thinking.

Lenze and Beard urged every presidential candidate, regardless of age, to release a detailed medical report to make clear how healthy they really are.

Lenze said after a certain age, maybe 70 or 75, that should include a full neuropsychological exam, something that takes several hours. Its far more intensive than quick screening tests that are a snapshot in time, such as the Montreal Cognitive Assessment or MoCA, that Trump often brags about passing in 2018.

Someone can get a perfect score on the MoCA but still be impaired, Lenze said. The level of cognitive intactness and ability to run the presidency is, I think, quite a bit greater than that required to finish the MoCA.

Without further information, simple life expectancy of the average American man shows Trump has about a 79% change of surviving a four-year term, said aging researcher S. Jay Olshansky of the University of Illinois at Chicago, who studies presidential health and echoes the call for candidate medical records. The younger Harris has a nearly 97% chance of surviving a first term in office, he said.

When it comes to the presidency, its not about age, its about function, Olshansky cautioned.

___

Peoples reported from New York. Associated Press Writer Michelle L. Price in New York contributed to this report.