Look, this isn’t complicated. Either you do what Trump tells you to do, or ya fiyad. It’s that simple.

The U.S. attorney investigating New York’s attorney general, Letitia James, and the former F.B.I. director James B. Comey said he had resigned on Friday, hours after President Trump called for his ouster.

Erik S. Siebert, the U.S. attorney for the Eastern District of Virginia, had recently told senior Justice Department officials that investigators found insufficient evidence to bring charges against Ms. James and had also raised concerns about a potential case against Mr. Comey, according to officials familiar with the situation. Mr. Trump has long viewed Ms. James and Mr. Comey as adversaries and has repeatedly pledged retribution against law enforcement officials who pursued him.

Understood? It doesn’t matter that investigators found insufficient evidence to bring charges or raised concerns about bringing charges; their job is to bring charges when they’re told to bring charges. End of story.

Mr. Siebert informed prosecutors in his office of his resignation through an email hours after the president, speaking to reporters in the Oval Office, said he wanted him removed because two Democratic senators from Virginia had approved of his nomination.

“When I saw that he got two senators, two gentlemen that are bad news as far as I’m concerned — when I saw that he got approved by those two men, I said, pull it, because he can’t be any good,” Mr. Trump said.

Obviously not. If The Enemy says you’re good at your job, you’re bad at your job. It’s like 2 + 2=4.

When asked if he would fire Mr. Siebert, Mr. Trump responded, “Yeah, I want him out.”

Ms. James, he told reporters, was “very guilty of something.”

Mr. Trump later disputed that Mr. Siebert had resigned, saying in a late-night social media post, “He didn’t quit, I fired him!”

Yes you did, Donnie, you’re a very big boy, everybody says so.

A lawyer for Ms. James, Abbe D. Lowell, called Mr. Siebert’s removal “a brazen attack on the rule of law.”

“The prosecutor did exactly what justice required by following the facts and the evidence, which didn’t support charges against Attorney General James,” he said. “Firing people until he finds someone who will bend the law to carry out his revenge has been President Trump’s pattern — and it’s illegal.”

Normally, yes, but under Trump, no.

The threat against Mr. Siebert was perhaps the most glaring example yet of the Trump administration’s efforts to exercise direct control over personnel and policy decisions at U.S. attorney’s offices around the country. Those moves have badly eroded the traditional distance between the White House and the Justice Department.

Eroded, no; nuked, yes.