If recent history is any indication, and of course it is, Michael Cohen’s testimony this week in front of Congress is about to make any lunatic ramblings by Rep. Maxine Waters, D-Calif., look like the musings of a wise sage.

Cohen, President Trump’s former gofer, will on Tuesday deliver what is expected to be three days of testimony implicating his ex-boss in a series of crimes Cohen has already pleaded guilty to, including campaign finance violations (Zzz…), lying to Congress, and lying to the FBI.

Cohen has admitted that he lied about the timeline of a real estate venture that the Trump Organization has pursued for decades, including into the 2016 election. Cohen also claimed that he acted on behalf of Trump during the election when he paid hush money to women who claimed they had separate affairs with Trump years before.

[Read more: Here's what Congress wants to hear from Michael Cohen this week]

A federal judge sentenced Cohen to three years in prison for those crimes, which have some relation to Trump, and others, which don’t, including Cohen’s extensive history of tax evasion and bank fraud.

So far, there is no strong evidence that Trump himself was engaged in any legal wrongdoing. The president denies he ever told Cohen to lie about the pursuit of a Trump Tower in Moscow, a project Trump has dreamed about since the 1980s, and he denies that the payments to his alleged mistresses from roughly 12 years ago were made to influence the 2016 election.

And there’s no reason why Cohen’s testimony should carry any weight. He most recently embarrassed himself in a nationally televised interview by insisting over and over again that he was “taking responsibility” for his crimes.

Cohen is “taking responsibility” by going to prison the same way a deadbeat drunk is “taking responsibility” for being unemployed. When you’re fired from your job, “taking responsibility” is your only option.

There has never been a time that Cohen didn’t look like a delusional mess.

On Election Day 2016, after it was clear that Trump had won the presidency, Cohen reportedly told a group of friends, “Nobody's going to be able to fuck with us. I think I'm going to run for mayor."

I imagine Cohen’s grandmother nearby offering an encouraging, “Some day you will, baby! You will!”

In March of last year, Cohen referred to himself as Trump’s “Ray Donovan,” a TV character who made the problems of celebrities go away. If that was Cohen’s paid responsibility for Trump as a “fixer,” the president should ask for a full refund.

But classic Cohen is his interview in 2015 with the Daily Beast, which sought comment from him for a story on Trump’s divorce from Ivana. Apparently unaware that Ray Donovan is not real, Cohen nonetheless channeled his fictional persona, telling the reporter, “So I’m warning you, tread very fucking lightly, because what I’m going to do to you is going to be fucking disgusting. You understand me?”

Now that Cohen’s going to prison, though, he’s supposedly gone from Ray Donovan to repentant deacon.

No one took him seriously before, and they shouldn’t take him seriously now.