Medical staff at Walter Reed did not get a staff-wide notice about a presidential visit to the medical center in Bethesda, Maryland, ahead of Trump’s arrival, according to that source.

Typically, Walter Reed’s medical staff would get a general notice about a “VIP” visit to the medical center ahead of a presidential visit, notifying them of certain closures at the facility. That did not happen this time, indicating the visit was a non-routine visit and scheduled last minute.

The source said it was possible a small group of doctors involved in Trump’s medical exams were notified before Trump arrived at Walter Reed, but said all medical staff at Walter Reed would typically be aware if the President was arriving for a routine medical exam.