U.S. President Donald Trump's vision of a Gaza Strip cleared of its Palestinian inhabitants and redeveloped into an international beach resort under U.S. control has revived an idea floated by his son-in-law Jared Kushner a year ago.

President Trump on Tuesday proposed the U.S. could take over the Gaza Strip. Mr. Trump's son-in-law, who took a lead role on Middle East policy during the first Trump administration, made strikingly similar comments to Harvard's Middle East initiative a year ago.