When I grew up on the sheltered Protestant north shore of Sydney one of the givens about the Catholic church was that when push came to shove it would obey Rome rather than the law.
This was a time when the election of a Catholic president of the United States was widely considered impossible or at the least dangerous. Where would JFK’s loyalties lie in a crisis, to Washington or Rome?
https://www.theguardian.com/australia-news/2017/dec/13/grappling-with-rome-david-marrs-lessons-from-the-royal-commission
https://www.theguardian.com/australia-news/2017/dec/13/grappling-with-rome-david-marrs-lessons-from-the-royal-commission