On July 26, 20013, President Barack Obama signed an executive order establishing the White House Council on Native American Affairs.
“By the authority vested in me as President by the Constitution and the laws of the United States of America, and in order to promote and sustain prosperous and resilient Native American tribal governments, it is hereby ordered as follows:
Section 1. Policy. The United States recognizes a government-to-government relationship, as well as a unique legal and political relationship, with federally recognized tribes. This relationship is set forth in the Constitution of the United States, treaties, statutes, Executive Orders, administrative rules and regulations, and judicial decisions. Honoring these relationships and respecting the sovereignty of tribal nations is critical to advancing tribal self-determination and prosperity.”
Read the full executive order here: http://m.whitehouse.gov/the-press-office/2013/06/26/executive-order-establishing-white-house-council-native-american-affairs