President Donald Trump boards Air Force One en route to Washington, DC, after participating in a world leaders' summit in Egypt on ending the Gaza war in Sharm el-Sheikh, Egypt, on Monday. Evelyn Hockstein/Reuters

The Gaza ceasefire and hostage release deal is Trumpism’s biggest triumph.

President Donald Trump is likely to see it as validation of his contempt for orthodox establishment peacemaking, traditional foreign policy dogmas and presidential caution. It’s a win for unpredictability, supping with tyrants and using real estate moguls as negotiators to chase the art of the deal.

Trump spent Monday glowing from the kind of universal adulation in Israel that he never receives stateside. He also appeared in Egypt with world leaders, many of whom reject his “America First” populi

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