Trump doesn't email.
Cohen could have emailed others referring to his dealings with Trump. And emailed his demands for Trump to protect him.
Apparently Trump was his only client for the last year+.
We will learn more tomorrow after his court hearing.
As for the back story for Cohen's judge. Funny how things are intertwined.
Feb 6, 1993 - Judge Kimba M. Wood withdrew today from consideration for Attorney General after the White House learned she had employed an illegal immigrant as a baby sitter before it became illegal to do so. That stunning setback left President Clinton scrambling for the third time to fill the post.

DO SOMETHING!