I have reservations about her political abilities.
Your reservation about Noem’s comment is correct, IMO. ;-)
Much better would be to investigate quietly until you are sure you have the goods on the perps and can issue arrest warrants.
One just needs to read the news. It has been going on for decades.
https://www.seattletimes.com/nation-world/border-indian-reservations-sources-of-drug-smuggling/
https://www.politico.com/magazine/story/2018/07/01/akwesasne-american-indian-community-218936/
The border tribes smuggle it across and the gangsters drive it from route to route through reservations.
I’m so sick of these people. These “tribes” should get what they want..... TOTAL sovereignty. No help from the USA and definitely no voting in ANY US or state election.