NM has more hispanics and more natives. Also, it has been historically it has been one of the poorest states. Maybe for the last reason, old stock hispanics in NM haven't trended republican as the ones in Colorado and Texas have.
People don’t understand just how strong the Native influence is in North New Mexico and among the Neomexicano population. I’ve already explained the historic reasons for this so I’m not gonna put in the effort here but anytime I see a comparison between Neomexicanos and other Hispanic groups in the US without mentioning this critical detail, I honestly just don’t take the rest of the post seriously.
To best highlight this, self identifying Mexican-Americans in New Mexico broke for Biden with 54%. Self-identified Spanish Americans (what Neonexicanos usually identify as) broke for Biden by 70%.
Found the post
There is also a much stronger Native American influence on Nuevomexicanos due to interactions with the sedentary Pueblo people who lived in the area and still do today.