I live in Mississippi (I'm a transplant). Sure, it may not play well around the country, but it won't hurt her here- at all. Most folks are downright pissed that the admin at Ole Miss no longer allows the marching band to play Dixie… And that they've banished the old mascot Colonel Reb (RIP). The state already held a vote several years back to try to change the flag and got trounced.
She'll win this going away.