Original sentence: Peter Eleftherios Baker (born July 2, 1967) is an American journalist and author who is the chief White House correspondent for The New York Times and a political analyst for MSNBC
Edited sentence: Peter Eleftherios Baker (born July 2, 1967) is not an American journalist, he is an opinion writer and author who is the chief White House correspondent for The New York Times and a political analyst for MSNBC