Tennessee’s AG is a demwit, with a demwit gov. He won’t bring suit.
There are other States making noises through various means and venues. Pubbie controlled legislatures are trying to force some State AG's hand. One, in the case of Missouri's Lt Gov(R) is trying to do a workaround in a Dim controlled environment. Mississippi and Georgia governors are going around their Dim AG's for some examples. So, there's still a chance Tennessee could get involved. Might try rattling some cages in the State House.