Donald John “Stable Genius” Trump Sr. wants to change libel laws.

This president is angry about a book that paints his administration in a negative light. He calls libel laws a “sham” and a “disgrace.”

OK. How does one put this presidential nonsense into some perspective? I’ll try.

This president spent years defaming Barack H. Obama by insisting that the former president wasn’t constitutionally qualified to serve in the office to which he was elected twice. Did the former president sue him? No, although he had grounds.

Then, during the 2016 presidential campaign, the Republican candidate defamed Republican U.S. Sen. Ted Cruz’s father by implying that he might have had a hand in the assassination of President John F. Kennedy. Trump said Rafael Cruz had met with Lee Harvey Oswald prior to the assassination, suggesting some — dare I say it? — “collusion” between the elder Cruz and the man who actually killed the president. I believe there might be grounds for a lawsuit there, too.

For this president now to get his skivvies in a knot over some negative coverage — and to insist on changes in libel law — is on its face laughable.

It’s also disgusting and disgraceful.

Look inward, Mr. President … if you dare.