"We know that the United States is the single most important and most powerful country in the world. But reality is that there are many emergent countries like China, and India, and even my home country South Korea," Ban said.
"They are all making remarkable economic and democratic progress. Therefore it is very important for the United States as one of the most important member states of the United Nations to have a very close dialog and close corporation with countries like China and India," the UN Secretary General told `Bloomberg TV`.
Maintaining that the US is the most important partner of the United Nations, he said, therefore, it has been his policy to have a very close relationship and cooperation with United State, the host country.
"I have been working with both Republican and Democratic Congress... I will continue my cooperative relationship with them," Ban said.