James Comey should be better than this.

The former FBI director, whom Donald J. Trump fired this past year  because of “the Russia thing,” has fired a heavy salvo at the president that includes some strangely personal observations about the man who canned him.

For instance, he has written in his book that the white bags  under Trump’s eyes are the result of goggles he allegedly wears while lying on a tanning bed.

Did he really have to go there? Did the former FBI boss really have to offer that observation about Trump? I, um, don’t believe so.

As such, Comey seems to have climbed aboard the Trump clown wagon, providing the kind of critique of the president that we usually hear from Trump himself.

This disappoints me greatly.

There is so much to criticize about the president. His policy-making process; his tempestuousness; his lack of judgment; his caprice; his inability to acknowledge mistakes. I could go on forever. I won’t.

Comey has now opened the door for Trump to drag the men’s apparently intense mutual loathing even farther into the rhetorical gutter.

Of the two men, I consider Comey to be much more credible than the president, who continues to demonstrate his inability to tell the complete, unvarnished truth about anything. He has lied continually all during his 16 months as president, not to mention the two years that preceded his election.

I am left to wonder: Why did James Comey choose to saunter down that path of gratuitous innuendo?