He served as United States Attorney for Georgia, mayor of Savannah, Georgia, speaker of the Georgia House of Representatives, president of the Georgia Senate, president of the 1856 Democratic National Convention, and United States Minister to China under James Buchanan.
When Huntsman left the governorship in 2009 to be the United States Ambassador to China, Huntsman chose Christiansen to swear him in.
United States | United Kingdom | Republican Party (United States) | Democratic Party (United States) | China | United States House of Representatives | President of the United States | United Nations | United States Senate | United States Navy | United States Army | Supreme Court of the United States | United States Air Force | Native Americans in the United States | United States Congress | People's Republic of China | Parliament of the United Kingdom | 66th United States Congress | Prime Minister of the United Kingdom | 74th United States Congress | 18th United States Congress | 73rd United States Congress | 54th United States Congress | 61st United States Congress | United States Marine Corps | United States Department of Defense | 64th United States Congress | 65th United States Congress | 53rd United States Congress | 52nd United States Congress |