"Visited a great family of a young man under major surgery at the incredible Walter Reed Medical Center", he said.
"He's healthy as can be", Grisham told Fox News.
Stelter went on to say the White House might be telling the truth about Trump's visit, "hopefully that is the case".
The White House said Trump would use the summit "to review the Alliance's unprecedented progress on burden-sharing, including adding more than $100 billion in new defense spending since 2016".
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And having Stewart as a comic lead actually works because she had us laughing quite a bit throughout the 119-minute action-comedy. Still, it does have one thing going for it that the others didn't, and that is Kristen Stewart as we've never seen her before.
Trump spent more than four hours at Walter Reed on February 8 for his most recent checkup, supervised by Dr. Sean P. Conley, his physician, and involving a panel of 11 specialists.
Following that visit, Donald Trump was found to be "in very good health". The US President was spotted visiting Walter Reed Medical Centre for an unannounced and unspecified medical exam.
"Those are truly some of the best doctors anywhere in the world", Trump wrote.
Trump and first lady Melania Trump will depart one day before the December 3-4 summit begins, and will leave the U.K.as it closes. "Will complete next year", he said.
Results from Trump's last physical nine months ago revealed that he had gained six pounds since taking office.
The examination took "approximately four hours" and did not require any sedation or anesthesia, according to the President's physician, Dr. Sean Conley, who performed and supervised the exam.
Most of his Democratic rivals for next year's presidential race are also aged 70 or over, and personal health concerns have become a talking point on the campaign trail.