On April 7, 2005, during the 109th Congress, United States senator John McCain introduced an amendment to NAGPRA, which (section 108) would have changed the definition of "Native American" from being that which "is indigenous to the United States" to "is or was indigenous to the United States". However, the 109th Congress concluded without enacting the bill. By the bill's definition, Kennewick Man would have been classified as Native American regardless of whether any link to a contemporary tribe could be found.