Jason Dov Greenblatt (born 1967) is an American lawyer. He was the executive vice president and chief legal officer to Donald Trump and The Trump Organization, and his advisor on Israel. In January 2017, he was appointed as the United States Special Representative for International Negotiations by President Donald Trump.Greenblatt is the son of Hungarian Jewish refugees, and grew up in Forest Hills, Queens, New York City. During World War II, his father fled Szatmárcseke in 1941 as a child, while his mother hid in Budapest with her family during the Nazi occupation, and fled to the United States after the Hungarian Revolution in 1956. He was born with the given name Theodore but had it legally changed as a teenager. He is the first cousin, once removed, of anti war activist Robert Greenblatt. Wikipedia