A picture showed up on my Facebook feed with the caption: No one blamed Jackie for what Jack did.

Hmm. Interesting, yes?

Now we’re getting a lot of blame being tossed around at the wife of another president.

Times really have changed.

President John F. Kennedy was a seriously unfaithful husband. During the time he was president — from January 1961 until November 1963 — his transgressions went unreported by the media that knew about it, but kept it secret through an understanding: If it doesn’t affect his performance as president, it doesn’t matter.

Years later, long after JFK had been buried and his wife had remarried, the world knew of what he had done behind his wife’s back.

Have we blamed Jackie for what the president did?

No. Today, the calculus is different.

Republican candidate for president Donald J. Trump is now blaming Hillary Rodham Clinton for being an “enabler.” That’s a reason to vote against her for president, said Trump. Why? Because she was mean to other women who accused her husband, Bill Clinton, of being unfaithful to her.

The House of Representatives impeached President Clinton for lying under oath about his relationship with a young White House intern. The Senate acquitted him in the trail that ensued.

Does any of that have an impact on how Hillary Rodham Clinton would govern the country if she’s elected president this fall? No.

In fact, I saw another social media post that suggested that Hillary Clinton’s response to her husband’s transgression should be saluted, not condemned. The Clinton family stayed together. They worked through their anger and heartbreak.

Of course, none of us knows what they have said to each other in private. Nor should we know. It’s their business exclusively.

Perhaps the most ironic twist of all in this game of blaming a political spouse for her husband’s behavior is the reputation of the individual who’s leveling the blame.

Given his own highly publicized history of marital infidelity, Donald Trump has no standing — zero! — to challenge the moral rectitude of any other human being in public life.