President Donald Trump’s former personal attorney and fixer, Michael Cohen, will be testifying before three different Congressional committees this week, with one — before the House Oversight Committee on Wednesday — being public and televised. And while it’s clear that Cohen has plenty of information he can share with members of Congress, it now appears he’s also bringing lots of documentation that will be entered into evidence as proof that Trump has committed numerous crimes.

NBC News national security correspondent Ken Dilanian said Monday that Cohen’s testimony could be very damaging to the president, and will begin with the lies he told to Congress in his previous appearance, before he became a cooperating witness with Special Counsel Robert Mueller and prosecutors in the Southern District of New York:

“He’s expected to address, first of all, his lies to those (congressional) committees on the timing of the Trump Tower and Moscow deal, the fact that it was going on much longer than he admitted in public and much longer than Donald Trump acknowledged.”

In particular, Cohen can shed light on the many business connections Trump has to Russia, Dilanian added and he’s got physical evidence he plans to bring with him:

“I’m told Cohen has been prepping with this for a long time, and he knows he’s got credibility issues, so he’s coming with documents, and he’s got very detailed, sordid and, what (attorney) Lanny Davis has described as chilling stories of what how the president conducts himself behind closed doors.

“We shouldn’t underestimate how powerful seeing a Trump insider who has been with Donald Trump for more than 10 years telling these stories before the glare of the television lights.”

Yes, Cohen is going to tell everything he knows, and he’s even bringing the receipts, which could well give the House Judiciary Committee all they need to initiate impeachment hearings against Trump. Documents, unlike people, don’t lie, and it’s always the paper trail that trips up white-collar criminals such as the Grifter-in-Chief currently occupying the Oval Office.

The nation will be riveted to Cohen’s testimony on Wednesday. When he’s finished, we could be looking at the beginning of the end of Donald Trump.

Here’s Ken Dilanian on MSNBC Monday morning: