Jordan’s King Abdullah stressed to US President Donald Trump’s adviser Jared Kushner on Wednesday that a lasting Middle East peace can only come with the creation of a Palestinian state on land captured by Israel in a 1967 war and with east Jerusalem as its capital. Kushner is leading a US delegation to the Middle East this week seeking support for a late June workshop aimed at helping the Palestinians, a White House official said on Tuesday. A palace statement said the monarch told Kushner Israel had to withdraw from the West Bank that was under Jordanian control which Israel captured in the 1967 Arab-Israeli war. “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 is worried the plan could jettison the two-state solution - the long-standing US and international formula that envisages an independent Palestinian state alongside Israel in the West Bank, east Jerusalem and Gaza. US officials have said the trip, which began in Rabat and will include Jerusalem, was to bolster support for a June 25-26 conference in Bahrain, in which Kushner is to unveil the first part of Trump’s long-awaited Israeli-Palestinian peace plan. The Palestinians will not be travelling to the Gulf kingdom, however, after criticizing it for failing to consult them about the event. They have boycotted the US administration since Trump broke with decades of consensus and recognized Jerusalem as Israels capital in December 2017. Trumps office said the conference was a "pivotal opportunity... to share ideas, discuss strategies, and galvanize support for potential economic investments and initiatives that could be made possible by a peace agreement". The Palestinians see this as offering financial rewards in exchange for accepting ongoing Israeli occupation. The peace plan, touted by Trump as the “deal of the century,” is to encourage investment in the West Bank and Gaza Strip by Arab donor countries before grappling with thorny political issues at the heart of the conflict. Kushner is scheduled to travel to Israel next.