washington monica crowley foreign policy adviser tap white house job president-elect donald trump relinquish post transition official tell reuters monday crowley choose serve senior director strategic communications national security council appointment shadow report plagiarism news outlets include cnn politico much reflection decide remain new york pursue opportunities take position incoming administration say statement quote washington time greatly appreciate ask part president-elect trump team continue enthusiastically support agenda american renewal cnn review find month crowley plagiarize thousands word 2000 dissertation columbia university ph.d. addition politico report find dozen examples plagiarism crowley ph.d. dissertation hire work trump national security adviser retire general michael flynn say statement quote time miss opportunity crowley team trump pick nsc post crowley step transition official