The new levies were set to go into effect early Wednesday.
The BBC has asked a U.S. court for help getting documents and testimony from Trump's family in connection to his $10-billion defamation lawsuit against the broadcaster.
Democratic lawmakers are warning about potential conflicts of interest.
The administration is asking the high court to allow construction to continue.
Trump snuck out of Air Force One to another plane via a catering container.
The president will appear alongside Nassau County Executive Bruce Blakeman, who has he endorsed in the New York governor's race.