President Donald Trump, right, shakes hands with Italian Prime Minister Paolo Gentiloni, left, following their news conference in the East Room of the White House in Washington, Thursday, April 20, 2017.
Mr. Trump also promised to pressure Mr. Gentiloni about fulfilling Italy's commitment to pay 2 percent of its gross domestic product (GDP) to North Atlantic Treaty Organisation.
According to pool reports, Gentiloni said that he was pleased to be in the United States and that he told the president he awaited his visit to Sicily. "They are not living up to the spirit of the agreement". Like Mr Trump's 2016 campaign opposite Hillary Clinton, the French election has had problems of fake news and deeply divisive politics between front runners extreme right-wing Marine Le Pen and the more progressive Emmanuel Macron.
Trump says Iran is doing "a tremendous disservice" to the agreement brokered by the Obama administration.
He said his administration would have more to say about the arrangement in the near future.
Early this month, the USA president told the Financial Times newspaper he thought the European Union was "getting their act together" - though he maintained Brexit would be "really, really good" for the Union and for Britain. "I just saw it as I was walking in, so that's a bad thing", he said.
Later, he said the United States' primary worldwide goal is "ridding the world of Isis". "I think we'll get both".
"Allow me to join the President in his words of condolences", the Italian Prime Minister followed.
"All nations must condemn this barbaric enemy", and work towards its "total and complete destruction", Mr. Trump said.
"I do not see a role in Libya", Trump said. Before then, he was Italy's foreign minister. Trump commented on the shooting in Paris, saying, "It looks like another terrorist attack". It just never ends.
Trump's comments could signal a major shift in United States foreign policy since the administration of President Barack Obama, which tried to foster a diplomatic resolution to the conflict between warring rebel factions.
Gentiloni, premier since December, was also expected to stress to Trump the need for burden-sharing in Europe's refugee crisis, given Italy's proximity to Libya, where large numbers of migrants take the risky voyage across the Mediterranean to reach Europe.