That "someone" isn't just Trump. He's 80. He'll be lucky if he lives out the rest of his term. The odds of him still being alive 5 years after his presidency when his records could start to fall into the hands of the public are very very slim.

I don't think this is for him and his many many crimes as much as it is being set up for those who will come after him and the many more crimes they have planned for the future.