From the Indian Country:
If I'm elected president, I would propose to make the cabinet secretary of Indian Affairs the Secretary of Indian Affairs; I would make it cabinet level. I would try, because I believe within the Department of the Interior it does not get the attention it deserves. I would have a cabinet department for Native American affairs. [...]
In terms of being governor, we have said that we recognize all tribes as equals, self-determination and government-to-government. And a Pueblo governor is equal to the governor of New Mexico. They're citizens of New Mexico. I just feel very strongly about it and I'm going to continue doing that if I'm elected president.
The whole article is well worth the read - it talks a ton about the Governor's history with Natives in New Mexico and his breaking of tradition by having a Pueblo Governor swear him in for his second-term. This is a huge policy difference that Richardson has immense credibility on. The sad part about this is that it's taken until the 21st century to get this going. But thankfully we have Richardson building the policy foundation for it to happen in 2008.