WASHINGTON — President Donald Trump had another medical exam on Tuesday, putting his health under renewed public scrutiny as he has worked to dismiss concerns over his age and stamina.

The 79-year-old president spent more than three hours at Walter Reed National Military Medical Center for what the White House described as preventive medical and dental checkups. It was Trump’s fourth publicly disclosed medical exam since he returned to office for a second term, and it comes as he tries to project strength ahead of midterm elections that will test his sway with voters.

In a social media post after the visit, Trump said that he had just finished his “6 month physical” and that “Everything checked out PERFECTLY.”

For decades, administrations have released selected results from presidential physicals, offering the public a glimpse at the commander-in-chief’s health. But the results are filtered through the White House and must be approved by the president, raising questions about what the public does and doesn’t get to see.

Trump, a Republican, turns 80 next month and was the oldest person elected U.S. president. His immediate predecessor, President Joe Biden, a Democrat, was 82 when he left office, dropping out of the 2024 presidential race because of widespread concerns he was too old for the job.