Some reading with a few links. Yes the Rangers in my area are openly against it. The normal hee-haw reasons. Poachers gone wild, trophy hunting from the CC crowd of targets of opportunity like big nutria rats, and pot shots at gypsy moths..all the typical reasons.
California...who knows, to be expected from Cali. Some places under park jurisdiction like the Liberty Bell and National Mall etc will most likely set there own rules.
But in VA and most states...it will be like kraigwy mentioned and follow the individual state's laws for permitted residents.