Donald Trump's son-in-law and senior adviser Jared Kushner is to travel to Jordan, Morocco and Israel this week in an attempt to drum up support for the economic part of the USA president's Middle East peace plan.
The Palestinians have already said they will not attend the summit and have rejected the Trump administration's Mideast peace plan out of hand.
The trip comes as the USA prepares to roll out the economic portion of the plan at a conference in Bahrain in late June.
FILE - In this February 14, 2019, file photo, White House Senior Adviser Jared Kushner attends a conference on Peace and Security in the Middle East in Warsaw, Poland.
"His Majesty stressed the need for a comprehensive and lasting peace based on a two-state solution, leading to an independent Palestinian state on 4 June 1967 lines with east Jerusalem as its capital, the palace statement said".
Jordan, a key USA ally, has not yet said whether it will attend the June 25-26 meeting in Manama, capital of the Persian Gulf state of Bahrain. Their approach is expected to focus on investment in Palestinian territories before dealing with political issues.
"Attempts at promoting an economic normalisation of the Israeli occupation of Palestine will be rejected", said Saeb Erekat, secretary-general of the Palestine Liberation Organization.
White House aide Jared Kushner, along with officials Jason Greenblatt and Brian Hook, plans to visit Morocco before travelling to Jordan and Israel in preparation for Washington's upcoming economic conference in Bahrain.
Greenblatt and Kushner met with Morocco's King Mohammed VI on Tuesday and discussed Morocco's support for the peace conference.
Reliant on American political and military support, it will be hard for Jordan reject the invitation.
Before heading to Amman, Kushner's delegation will head to Rabat, from where they will travel to Jordan and Jerusalem.
Jordan is anxious the plan could jettison the two-state solution that is backed by the United Nations and most countries around the world.
But Palestinian political leaders say they will boycott it and Palestinian business leaders said they won't go either, raising further questions about the plan's viability.
Saudi Arabia and the United Arab Emirates have said they will participate, and a senior USA official said officials from Qatar have said privately their country was expected to attend as well.
Jordan is anxious the plan could jettison the two-state solution - the long-standing USA and global formula that envisages an independent Palestinian state alongside Israel in the West Bank, east Jerusalem and Gaza.