David Wurmser served as special assistant at the State Department to a diplomat that was appointed  U.S. ambassador to the United Nations by what president?
David Wurmser David Wurmser (born in Switzerland) is an American foreign policy specialist. He served as Middle East Adviser to former US Vice President Dick Cheney, as special assistant to John R. Bolton at the State Department and as a research fellow on the Middle East at the American Enterprise Institute (AEI). He served in the U.S. Navy Reserve as an intelligence officer at the rank of Lieutenant Commander.
David D. Pearce David Duane Pearce (born June 9, 1950) is an American diplomat served as the U.S. Ambassador to Greece. He previously served as the United States Ambassador to Algeria, 2008–11 as the Assistant Chief of Mission at the U.S. embassy in Kabul, Afghanistan; and as the Deputy United States Special Envoy for Afghanistan and Pakistan.