The ex-employees told the Wall Street Journal that Trump had one or more recording devices that he would sometimes use to tape conversations with associates.

They claim to have seen the devices being used to record conversations when they worked for Trump as high-level employees over a period spanning 30 years.

A fourth person, who was an associate of Trump’s, told the outlet he knew the then-businessman had recorded one of their conversations because it was later used as evidence in a lawsuit.

Recording conversations is not illegal in New York as long as at least one person involved is aware it is being taped.