Question: Which Holocaust survivor is grandfather to the son-in-law and senior advisor to President of the United States Donald Trump.? 
Sentence (from "Brett H. McGurk"): He earlier served under President George W. Bush as Special Assistant to the President and Senior Director for Iraq and Afghanistan, and under President Obama as Special Advisor to the U.S. National Security Council and Senior Advisor to the U.S. Ambassador to Iraq.
Relevant evidence: No