A search warrant has shown that Trump is under federal investigation for possible violations of the Espionage Act, which makes it unlawful to spy for another country or mishandle US defence information.
Here’s what you should know about the property that Trump also called his “Southern White House”:
Mar-a-Lago is a mansion and private-members club located in Palm Beach County in Florida.
It has guest rooms, a spa and hotel-style amenities for members.
Trump maintains private quarters on the grounds of the century-old property that are closed off to club members.
Mar-a-Lago was used by Trump to host meetings with international leaders such as then Japanese Prime Minister Shinzo Abe and Chinese President Xi Jinping.
The well-heeled members of the club and, members of the public, also attended weddings and fundraising dinners for Trump at Mar-a-Lago.
The Secret Service provided physical security at Mar-a-Lago while Trump was president and afterwards, but they are not responsible for vetting guests or members of the club.
“The foreign visitors there and others who might have connections with foreign governments and foreign agents – creates a significant national security threat,” former Department of Justice (DOJ) official Mary McCord said of the residence.