Why it was once unthinkable for the president to be seen with the pope
Pope Francis, Donald Trump -- (AFP/Flickr Gage Skidmore)

By David Mislin, Assistant Professor, Intellectual Heritage Program, Temple University. President Trump stands beside Pope Francis at the Vatican on May 24, 2017. An unidentified priest looks on. Evan Vucci/AP The much-anticipated meeting between President Donald Trump and Pope Francis – the third stop on the first overseas trip of Trump’s presidency – proved successful. Reports…