TRUMP AS PRESIDENT: “A tweet from President Donald Trump on Friday [5-12-17]suggesting that he might have taped phone conversations from the White House made waves in Washington, but some former employees and a former associate said it wasn’t a surprise to them that he would mention taped conversations.
As a businessman, Mr. Trump sometimes taped phone conversations with associates and others from his Trump Tower office in New York, according to three people who say they have direct knowledge of the recordings.
Mr. Trump had one or more recording devices that he used to tape phone calls from his office, the three people said. All are former high-level employees who worked for Mr. Trump over a span of three decades. They said they saw devices in use recording phone calls.
A fourth person said he knew that Mr. Trump had recorded a phone conversation with him because it was later entered into evidence in a lawsuit.”
-Alexandra Berzon, “Former Employees of Donald Trump Say They Saw Him Tape Conversations,” The Wall Street Journal online, May 12, 2017 6:48pm