If you read news stories about the mueller investigation you can catch glimpses of this as people who have been interviewed tell reporters over and over again that it’s close to wrapping up.
I’m sure everytime everyone is interviewed the agent tells them they’re just wrapping up a few loose ends and they think the whole thing is a big misunderstanding.
Or that the people who are being interviewed individually have no leads so from their vantage point the investigation perpetually seems to be wrapping up (because there seem to never be any new leads) except every now and then they find someone they can nail for the typical process crimes wall street/Washington elite engage in.
Then there's the whole political angle. One side wants this to seem like the investigation is chasing nothing and should have ended a long time ago. The other side wants it to seem like a damning report will come out tomorrow.
I’m sure everytime everyone is interviewed the agent tells them they’re just wrapping up a few loose ends and they think the whole thing is a big misunderstanding.