As is customary, the executive order says that some employees may be required to report to work “for reasons of national security, defense, or other public need.”
Agency heads also have the discretion to determine whether certain offices need to remain open on the holiday.
The order comes as federal workers face longer-term uncertainty about a less festive government shutdown. Even though Trump backed off his demand for $5 billion to pay for a wall on the Mexican border on Tuesday, Democrats and Republicans have yet to come to a budget deal with a deadline looming on Friday to find a compromise.
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