She isn't holding any office, nor running for office. She has a celebrity status, but still, IMO, is a private citizen. In any event her children surely are and they have been maligned as well.
Plus, I forgot she was Governor of ALASKA!
Since when are Governors “private citizens” for the purpose of slander/libel?
I think she’s got a decent case anyway, but she’s not a private citizen. Her kids are.