The equation was rather remarkable.

First you had some Catholic politicians who — in words and deeds — kept defying church teachings on an important and controversial topic in public life.

Then you had an archbishop who faced a tough decision about whether to do anything, beyond verbal warnings, to show them he was willing to defend these church teachings on moral theology and the sacraments.

When the archbishop stepped up and punished the politicos, denying them Holy Communion and more, the mainstream press — CBS and The New York Times, even — openly backed his actions with positive coverage.

Wait, what was that last thing?

Right now, the U.S. Catholic bishops are headed deeper into a showdown over the status of President Joe Biden and other Catholics who openly — through word and deed — defy church teachings on abortion, marriage, gender and other issues in which doctrines are defined in the Catholic Catechism and centuries of church tradition.

As part of the discussion this past week, America magazine — a strategic voice for Catholic progressives — can this fascinating essay: “What a 60-year-old excommunication controversy tells us about calls to deny Biden Communion.” It was written by Peter Feuerherd, a journalism professor at St. John's University in New York City. Here’s the overture:

In April 1962, Archbishop Joseph Rummel of New Orleans not only denied Communion to three Catholics in his archdiocese; he went a step beyond. At 86 years of age and in ill health — he would die two years later — he formally excommunicated the three, who vehemently opposed his efforts to desegregate Catholic schools.