Trump wanted Comey to refute the charges that he was under investigation

Andrew McCarthy:

Maybe Trump objected to the fraudulent notion, which Comey led the world to believe, that Trump was under investigation for collusion.

On March 30, 2017, by his own account, then-FBI director James Comey told President Donald Trump that Trump himself was not under investigation — the third time he had given him that assurance. In fact, Comey told Trump that he had just assured members of Congress that Trump was not a suspect under investigation.

Think about that.

This was fully six weeks after the then-director’s Oval Office meeting with the president, during which Comey alleges that Trump told him, “I hope you can see your way clear to letting this go, to letting Flynn go.” Flynn, of course, is Michael Flynn, the close Trump campaign adviser and original Trump national-security adviser, whom Trump, with pained reluctance, had fired just the day before.

Interesting thing about that. Most of the time, when public officials obstruct an investigation, there is a certain obsessiveness about it. Because, in the usual situation, the official has been paid off, or the official is worried that the subject of the investigation will inculpate the official if the investigation is allowed to continue. There is great pressure on the official to get the case shut down.

But not Trump, he of the notoriously short attention span.

Trump was feeling remorse over Flynn. What he told Comey, in substance, was that Flynn had been through enough. A combat veteran who had served the country with distinction for over 30 years, and who had not done anything wrong by speaking with the Russian ambassador as part of the Trump transition, Flynn had just been cashiered in humiliating fashion. The one who had done the cashiering was Trump, and he was still upset about it. That, obviously, is why he lobbied Comey on Flynn’s behalf.

And as I have pointed out before, it was an exercise in weighing the merits of further investigation and prosecution that FBI agents and federal prosecutors do hundreds of times a day, throughout the country. That matters because, as their superior and as the constitutional official whose power these subordinates exercise, Trump has as much authority to do this weighing as did Comey — who worked for Trump, not the other way around.

The thing to notice, though, was that Trump never did it again. After Comey’s description of this February 14 encounter, the word “Flynn” never appears again in Comey’s written testimony. This appears to be the one and only time that Trump advocated on Flynn’s behalf.
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There is more.

McCarthy is an experienced prosecutor who brings credibility to the conversation about Trump and Comey.  What McCarthy is doing is pointing out just how weak a case Comey has put together to try to bring down the President.  It is in fact so weak that "no reasonable prosecutor would bring such a case."