Just throwing this out there for non-religious people who often seem confused by certain current events:
American evangelicals nearly universally have zero interest in what a pope has to say on a subject. By and large, they give the Pope's opinion the same weight as, say, the Dalai Lama's, which is to say, none whatsoever.
I mention this because I see things like "Trump says X but the pope says Y. How will his base react?" His base couldn't care less.