From the Politico article:
Meet the guys who tape Trump's papers back together
www.politico.com/story/2018/06/10/trump-papers-filing-system-635164
Under the Presidential Records Act, the White House must preserve all memos, letters, emails and papers that the president touches, sending them to the National Archives for safekeeping as historical records.
But White House aides realized early on that they were unable to stop Trump from ripping up paper after he was done with it and throwing it in the trash or on the floor, according to people familiar with the practice. Instead, they chose to clean it up for him, in order to make sure that the president wasn’t violating the law.
Staffers had the fragments of paper collected from the Oval Office as well as the private residence and send it over to records management across the street from the White House for Larkey and his colleagues to reassemble.
“We got Scotch tape, the clear kind,” Lartey recalled in an interview. “You found pieces and taped them back together and then you gave it back to the supervisor.” The restored papers would then be sent to the National Archives to be properly filed away.
Lartey said the papers he received included newspaper clips on which Trump had scribbled notes, or circled words; invitations; and letters from constituents or lawmakers on the Hill, including Senate Minority Leader Chuck Schumer.
“I had a letter from Schumer — he tore it up,” he said. “It was the craziest thing ever. He ripped papers into tiny pieces.”
Lartey did not work alone. He said his entire department was dedicated to the task of taping paper back together in the opening months of the Trump administration.