Because certain Native American organizations are apparently angry that a DNA test was used to prove the authenticity of her claims and rather than take a more nuanced and delicate approach so as to not wound a political ally they opted to denounce her publicly and unintentionally bolster Trump's claims in the process.
To be clear, they probably have a point but there are better ways to handle it than aiding a man who is without question an enemy of your cause and agenda.
I missed that gem.
Hey bud? The Cherokee people don't have to give a shit about what is strategic for you. Warren really fucked this up and has refused to meet with them in the past.
She would have been a better political ally if she gave a shit about them. How dare they call out the fact that a buncha white people claim to be Cherokee and devalue being native as a mere matter of waving around your blood quantum or some distant ancestor while having never even come close to being near native history or culture.