What are the duties of a US ambassador?
A third, but not less important, duty of an ambassador is to maintain the most amicable relations with the sovereign to whom he is accredited, and with his ministers, and to observe towards them the strictest respect, veracity, and good-will. It has been said in joke that the first duty of an ambassador is to keep a good cook; but if this implies that he is to exercise a liberal hospitality and to make his house agreeable, those no doubt are means which may powerfully assist him in the objects of his mission.