President Donald Trump’s senior adviser and son-in-law, Jared Kushner, kicked off a swing through the Middle East on Tuesday, meeting with Jordan’s king as part of a broader effort to lay the groundwork for an expected Israeli-Palestinian peace plan.

Kushner and White House envoy Jason Greenblatt held talks with Jordan’s King Abdullah II, a key U.S. ally.

A White House statement said the talks focused on U.S.-Jordan cooperation, the humanitarian situation in the Gaza Strip and the U.S. efforts “to “facilitate peace between the Israelis and Palestinians.”

U.S. officials have said their peace plan is near completion and could be released this summer. But it faces resistance from the Palestinians, who have cut off ties since Trump recognized Jerusalem as Israel’s capital last December and moved the U.S. Embassy in Israel to the holy city last month. The Palestinians, who seek Israeli-annexed east Jerusalem as their capital, accuse the U.S. of siding with Israel in the most sensitive issue of their decades-long conflict.

Kushner’s team also plans stops in Israel, Egypt and Saudi Arabia. No talks with the Palestinians are scheduled, though the Americans have left the door open to meeting with them.

Readout of Jared Kushner and Jason Greenblatt’s Meeting with the King of Jordan https://t.co/YKjOgXNNf5 pic.twitter.com/ktjDefmUCH

— Jason D. Greenblatt (@jdgreenblatt45) June 19, 2018

The Palestinians seek all of the West Bank, east Jerusalem and Gaza Strip for an independent state.

The U.S. has been trying to rally support for projects to rescue Gaza’s economy, which has been weakened by an Israeli-Egyptian blockade, while continuing to isolate Hamas. The U.S., Israel and Western allies shun Hamas as a terrorist group.

Details of the plan have not been released, but Palestinians fear they will get little more than a symbolic foothold in Jerusalem. They also fear that aid to Gaza will help strengthen Hamas’ control over the territory.

Jordan also has a stake in east Jerusalem, serving as the custodian of major Muslim and Christian shrines there.

Abdullah has also rejected Trump’s moves in Jerusalem. Israeli Prime Minister Benjamin Netanyahu refuses to relinquish any part of the city.

Netanyahu traveled to Amman on Monday for a surprise meeting with Abdullah, telling the king that Israel remains committed to the status quo of the holy sites in Jerusalem.

Abdullah told Netanyahu that the fate of Jerusalem must be determined in Israeli-Palestinian negotiations, and that a solution should be based on establishing a Palestinian state, with east Jerusalem as its capital, on lands Israel captured in 1967.

Palestinian officials fear the Trump administration plan will leave them with a mini-state in the Gaza Strip, parts of the West Bank and a foothold in Jerusalem. Palestinian leader Mahmoud Abbas has said he will reject any plan being floated by the Trump team, arguing that the U.S. has forfeited its role as mediator because of decisions seen as pro-Israel.

(AP)