“Earlier today I spoke briefly with the president about the immigration executive order and its issues for our community,” Mr. Kalanick wrote. “I also let him know that I would not be able to participate on his economic council. Joining the group was not meant to be an endorsement of the president or his agenda but unfortunately it has been misinterpreted to be exactly that.”
Source: Uber C.E.O. to Leave Trump Advisory Council After Criticism – The New York Times