Last week, when asked if he had a message about the war in Iran for President Trump, Leo XIV said, “Hopefully, he’s looking for an off-ramp.” Of all the Catholic rituals of Holy Week—the Palm Sunday procession; the Mass of the Lord’s Supper, on Holy Thursday; the Way of the Cross, on Good Friday—surely the most striking is the washing of the feet. Partway through the Holy Thursday Mass, twelve people take seats near the altar and remove their shoes and socks.