The president then flew to Brussels or a North Atlantic Treaty Organisation meeting, from where he will travel to the cliff-top resort town of Taormina in eastern Sicily for the Group of Seven summit tomorrow and Saturday.
During the election campaign, Mr Trump declared that the North Atlantic Treaty Organisation military alliance, of which the United States is a principle member, was "obsolete". Pope Francis and Trump have very different views on issues such as immigration, climate change and arms sales.
"But when you see something like what happened a few days ago you realize how important it is to win this fight". Without naming Trump by name, the Pope said in February 2016 that "a person who only thinks about building walls, wherever they may be, and not building bridges, is not Christian". For Francis, it's a chance to influence a leader who, for all his stumbles, remains the most powerful person in the world. In return, the Pope gave the president a printout of the 2015 paper he wrote on the damaging effects of climate change in an unceremonious manila folder that his staff probably found at the bottom of a filing cabinet in an abandoned JCPenney. In Saudi Arabia, however, the government did not request that Mrs. Trump wear a head covering known as a hijab, or a headscarf, Grisham said. "We had a fantastic meeting", the president said.
Francis first greeted Trump in the apostolic palace's Sala del Tronetto, the antechamber of the papal library.More news: UN Security Council condemns terrorist attack in Manchester
Francis asked her, "What do you give him to eat, potizza?". "Potica?" Potica is a calorie-heavy cake from Melanie's native Slovenia pronounced "potteezza", AFP reported.
"I'll be reading them", the president told him.
The Vatican described the discussions as "cordial" and emphasised the two men's joint opposition to abortion and shared concern for persecuted Christians in the Middle East.
The Pope also gave him an English translation of Laudato Si, an encyclical he wrote in 2015 on the environment - a pointed gift, given that Mr Trump has threatened to withdraw the USA from the 2015 Paris accord on combating climate change.
In addition to the books, Trump gave the pope a piece of the Dr. King monument, the Stone of Hope, engraved with a quote, and a hand-made bronze sculpture of a floating lotus by a Florida artist titled "Rising Above".More news: 'Alien: Covenant' edges 'Guardians' at weekend box office
"There's a whole range of issues on which the pope and Trump differ, but the point of their meeting isn't to forge agreement on them or to change each other's minds", papal biographer Austen Ivereigh said in a telephone interview.
Trump told reporters before the meeting she was eager to meet these "remarkable women, who are testament to strength, faith, perseverance in the face of unspeakable adversity and challenge".
But Pope Francis also gave Mr. Trump his 2017 World Day of Peace message, which contemplated the role of nonviolence in global peacebuilding, telling Mr. Trump, "I signed it personally for you". "We can use peace", Trump replied.
For his part, Trump gave Francis a special edition of the works of US civil rights leader Martin Luther King.More news: Rent-to-own scheme one of key planks of Lib Dem manifesto
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