If Trump wants to do a deal--he needs Jordan to come to the party and enter into direct negotiations with Israel to allocate sovereignty in the West Bank between Jordan and Israel
Trump can broker Israel-Jordan deal but no Israel-PLO agreement
President Trump's Special Representative for International Negotiations--Jason Greenblatt--has returned from his wide-ranging meetings in Jerusalem, Ramallah, Amman and Jericho with zero prospects of Trump brokering a deal between Israel and the PLO.
However Greenblatt's belief in the pivotal role Jordan can play in resolving the 100 years old Jewish-Arab conflict was apparent in his tweet after meeting Jordan's King Abdullah II:
