I think there is a little bit of projection going on here:

Politics also factors heavily into D.C. v. Heller, according to Henigan.

He said some state attorneys general — who are elected in 43 states — likely sided with Heller as a way to show constituents they support an individual-rights reading of the Second Amendment, even as they seek to preserve their own state statutes regulating guns.

“These are political actors. They don’t want to appear to be endorsing a handgun ban,” Henigan said.