“At times, though, the door would be closed. This was an anomaly at the Trump Organization. It meant that Trump was doing something that didn’t come naturally. He was cutting off the flow of constant distraction; he was choosing to focus on something important. If Trump was discussing a deal, he liked to be able to call someone into his office and share how great the deal was. If he was meeting with someone especially rich or famous, he would make introductions. So closing the door meant that he was not to be disturbed; he was negotiating something so important and secretive that Trump allowed his door to be shut. The people allowed inside the room when the door was closed were the ones who would know Trump’s secrets, this man told me. And those people were always the same.” The New Yorker’s Adam Davidson has been following this story as closely as anyone. Here’s his take on where the Trump investigation will go next.