A senior Saudi adviser said the meeting "is considered a historical turning point in relations between both countries", and "restored issues to their right path".
After visiting in the Oval Office, Trump and his advisers joined the prince and the Saudi delegation for lunch in the White House state dining room.
There is also the potential for anti-Muslim sentiment among some in Trump's inner circle to complicate the Saudi-U.S. relationship, said Feirestein. The U.S. too is gearing up for a campaign against al Qaeda.
Last month, Saudi Arabia celebrated its first ever Women's Day.
Saudi officials have expressed optimism about rebuilding relations with the United States and collaborating with the Trump administration to limit Iran's influence in the region.
The two leaders also discussed opportunities for U.S. companies to invest in Saudi Arabia.
Since Sept. 11, 2001, no citizen of the countries listed on the travel ban - Iran, Libya, Somalia, Sudan, Syria and Yemen - has killed an American in an act of terrorism, according to PolitiFact.
The U.S.is now aiding Saudi-backed Sunni forces in Yemen as they fight the Iranian-supported Houthi rebels.
Daesh, the world's most notorious terror group mainly active in Syria and Iraq, is inspired by Wahhabism, which is a radical Takfiri ideology dominating Saudi Arabia and freely preached by Riyadh-backed clerics there. They are now allowed to cast a vote for local elections, for example, and more women recently graduated from Saudi universities than men.
In addition to the abysmal treatment of women and homosexuals, Saudi Arabia is a place where migrant workers are routinely tortured and sexually abused, while young children are frequently imprisoned, and even executed, without a trial.
DEBKAfile's sources report that Kushner's presence indicates Saudi Arabia's role in a future Middle East peace agreement between Israel, the Palestinians and Arab countries.
"They were happy to see Obama go", Riedel told The New York Times.
During the king's stay, the two sides will discuss enhancing cooperation in areas such as culture, economy, trade, technology, security and defense.