Have you ever worked at the state department?
No, but I can research information well. My statement that many ambassadors do not speak the language of their host country stands as being true. If you find information otherwise, please post it.
Ambassador positions to the majority of countries are purely political patronage jobs handed out to those that supported the current President during their election. There is no requirement they speak the language of the host country at the time of assignment. The ambassador will normally speak in English and use translators as needed. If you have information to the contrary, please post it.