The new U.S. ambassador to Israel David Friedman, who took up office on Monday, has also backed the move.
A diplomatic blowup over the status of Jerusalem, followed by revelations Trump had shared highly classified Israeli intelligence with Russian Federation, has reinforced the president's image as dangerously unpredictable. But with mounting obstacles at home and overseas, he faces long odds of succeeding where more experienced predecessors have failed.
Erekat told The Associated Press that he is encouraged by Trump's determination, describing the president as "very serious" about reaching a deal. The official said Trump preferred to keep such conversations private, much as he did with Egyptian President Abdel Fattah al-Sisi recently when he obtained the release of an Egyptian-American humanitarian worker, the official said. Top advisers he has tasked with nuts-and-bolts negotiations, led by his son-in-law Jared Kushner, are also lacking experience.
"These comments were not authorized by the White House".
During a trip to Saudi Arabia that begins with his arrival in Riyadh on Saturday, Trump will express support for forming a NATO-like force for the Middle East, backed by Gulf states, the official said.
The reunification anniversary is "the right time for the USA to correct this historic injustice", said Susan Michael, the director of ICEJ's United States branch.
Jerusalem is claimed by both Israelis and Palestinians as their capital.
Analysts agree that her choice of words reflected her personal opinions on the issue and not necessarily an official trump administration stance.
Hagee added, "The Jewish state has the right to determine where it would place its capital, and it has chosen Jerusalem".
In response, Israeli Prime Minister Benjamin Netanyahu said that moving the U.S. embassy to Jerusalem "would not harm the peace process".
While at the Group of Seven summit in Sicily later in the month, Trump will hear out European leaders concerned that he might withdraw the United States from the Paris climate agreement, the official said.
Senior-level US officials are sharply critical of Israel's Education Minister Naftali Bennett for his vocal opposition to peace initiatives being promoted by US President Donald Trump, saying Bennett's behavior is "burying" the chances that the relocation of the US embassy to Jerusalem will ever be carried out.
Trump promised during his election campaign to move the USA embassy to Jerusalem, whose status is one of the thorniest issues in the Israeli-Palestinian conflict.
While Israel considers Jerusalem its "eternal, undivided capital", the Palestinians regard the east of the city - occupied by Israel in the 1967 Six Day War - to be the capital of any future Palestinian state.
The American team planning Trump's visit reportedly said they do not wish to have Israeli Prime Minister Benjamin Netanyahu join the president during a visit to the Western Wall.
Some Gulf Arab diplomats have floated the notion of making a positive gesture toward Israel, possibly a limited upgrading of diplomatic and economic ties, in exchange for up-front concessions to the Palestinians. "It is a top priority that there is close coordination with the US, making sure the visit goes exactly according to plan".