JERUSALEM

President Trump’s visit to Saudi Arabia this week has begun to soften his attitudes about Islam, Secretary of State Rex Tillerson said Monday after a two-day summit in which the president was treated to extraordinary Arab hospitality.

“I think the president’s views — like, we hope, the American people’s views — are going to continue to evolve,” Mr. Tillerson said on the flight from Riyadh to Tel Aviv.

Mr. Tillerson’s candid assessment, made to reporters aboard Air Force One, represents a remarkable turnaround for President Trump, who campaigned on a platform that argued for “total and complete shutdown of Muslims entering the United States.”

Mr. Tillerson also suggested there’s even more room for President Trump to moderate his views as he’s exposed to more Muslim leaders.

“Nothing helps you learn and understand people better than coming to their homes, where they live, and seeing them face to face, seeing their families and seeing their communities,” Mr. Tillerson said. “We all share the same wants and desires for ourselves and our people, and our families.

“We want our children to grow up without fear. That’s such a strongly held view around the world, certainly among the Muslim world, certainly among the non-Muslim world.”

Mr. Tillerson’s remarks came the day after President Trump delivered a speech widely seen as an olive branch to the Muslim world. Rather than use the phrase “radical Islamic terrorism,” President Trump referred to “Islamist extremism,” a subtle but meaningful distinction that suggests the extremism is more ideological than religious.

“This is not a battle between different faiths, different sects or different civilizations,” the president said. “This is a battle between barbaric criminals who seek to obliterate human life, and decent people of all religions who seek to protect it.”

It’s a far cry from President Trump’s campaign rhetoric that accused Muslims of hating America — even repeating unfounded claims that hundreds of Arabs cheered the destruction of the World Trade Center from across the river on 9/11.

“I think Islam hates us. There’s something there. There’s a tremendous hatred there,” the president told CNN’s Anderson Cooper last year.

Over two days in the Saudi capital of Riyadh, the kings and crown princes of the Persian Gulf heaped honors and accolades on the American president.

“We were treated incredibly well,” President Trump said Monday. “I was deeply encouraged by my conversations with Muslim world leaders in Saudi Arabia.”

Mr. Tillerson said President Trump’s speech was directed not just to the leaders of Muslim nations, but also to Muslim Americans. One of the takeaways of the trip, Mr. Tillerson said, was that “we need to put a lot more effort into understanding one another better, understanding each other’s cultures, understanding each other’s beliefs, and I think talking more openly about those.

“I think there’s a great deal that’s misunderstood about the Muslim world,” he said.