Well, I know he and Ivanka are attending a Chabad synagogue in DC. Since they’re already Orthodox, I’m not sure what it takes to become Chassidic.
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I give the President credit for preventing a rash of leaks, which has kept the anti Israel component of the Democrat Party quiet. If that's a function of keeping details amongst 4 people, or a dozen, fine. Recognizing the limitations of govenment and the ethics of employees, even a government you head, is important. Though a bit sad. Imagine planning D Day with planning knowledge limited to four people.
That said, like the Mueller report it's probably best to wait until the plan is released. There'll be plenty of controversy. Personally I can't envision any successful plan given the fact that the palestinians, both ruling factions, refuse to accept the possibility of Israel existing, refuse to negotiate with either the US or Israel. No lasting peace can be made with only one of the parties. Best one can hope for is a lasting truce. Recognizing realities on the ground, as in Jerusalem and the Golan, is a long term plus but what's left, annexation of settlements, will provide the dems and Euros with months of screaming fodder. As is closer Israeli/selected Afab relations driven by the Iranian threat. But those things aren't accomplished by a "peace plan".