Earlier this month, the president said he favored taking control of Gaza and displacing the Palestinian population of the devastated seaside enclave. But Egypt and Jordan flatly rejected cooperating.

For decades, American officials described the rulers of Egypt and Jordan as linchpins of regional stability. They made peace with Israel (in 1979 and 1994, respectively). They mostly avoided wars, coups and revolutions.

President Trump said Monday he would consider withholding aid to Jordan and Egypt if they do not agree to take in Palestinians as part of a plan for the U.S. to take over and develop the Gaza