I gotta admit, that is some pretty amazing trolling by the Pope. Having the Congressional audience stand and clap when they assume he's talking about abortion and then immediately pivoting to advocating for the abolishment of the death penalty before they have time to sit down. That is brilliant:
So, it might have been awkward for Scalia and his colleagues when Francis got to the “golden rule” part of his address. It was a nifty maneuver — the pope got the entire audience to stand up when he declared that “the golden rule … reminds us of our responsibility to protect and defend human life at every stage of its development.”
But while the pope was undeniably referring, among other things, to the very beginning of life, his next sentence took many in the crowd by surprise. “This conviction has led me,” he continued, “to advocate at different levels for the global abolition of the death penalty. I am convinced that this way is the best, since every life is sacred, every human person is endowed with an inalienable dignity.”
-From Article about the conservative Catholic SCOTUS justices not attending the Pope's speech