The Great Wall of Trump
Donald Trump, running for President of the USA, suggested building a large wall on the border between the USA and Mexico.
Then Pope Francis said: "A person who thinks only about building walls, wherever they may be, and not building bridges, is not Christian".
Which is kind of ironic, given the walls around the Vatican:
Trump then said: "For a religious leader to question a person's faith is disgraceful".
Especially since that religious leader is not even a Christian himself.