Dolly Parton could reach out and take a US Senate seat, yes, even here in TN, if she wanted to.
The reason she doesn't is that she has much better things to do with her life. Trying to drag her into politics is the dumbest own-goal imaginable in the event it works.
Relatedly, if Trump term 2 rolls along Dolly may be awoken from her slumber. Authoritarian consolidation requires cutting down or bringing to heel all celebrities capable of contesting the regime's preferred narratives.
They literally tried to give her a statue at the capitol in Nashville and she refused, she could win a seat in TN without lifting a finger and tbh the state would be so much better off if she actually did