The bill is still open for sponsors to sign on. As of now there are five. Harrison, Insko, Fisher, Cunningham and Floyd. All of the same political persuasion and all from major metro areas.
A case of big "liberal" city representatives putting forward legislation in a conservative state because they are soon up for re-election???
Why is North Carolina so conservative politically despite being home to a many universities and a relatively diverse population? - Quora
How conservative states and liberal cities vie for control - The Economist explains