The Trump administration and international partners are discussing proposals to build a “Riviera of the Middle East” on the rubble of Gaza. One would establish U.S. control and pay Palestinians to leave.A postwar plan for Gaza circulating within the Trump administration, modeled on President Donald Trump’s vow to “take over” the enclave, would turn it into a trusteeship administered by the United States for at least 10 years while it is transformed into a gleaming tourism resort and high-tech manufacturing and technology hub. The 38-page prospectus seen by The Washington Post envisions at least a temporary relocation of all of...