Every time they start talking gun control they lose elections.
On the national level yes, that's one of the reasons they took back Congress - they ran mostly pro RKBA donkeys. But if you look at the states such as PA and liberal cities, they are still foaming at the mouth. Enter the keyword microstamping.
Philadelphia has a huge murder problem; not that unusual in a one-Party kleptocracy in the Northeastern US. There is no sentiment outside of the city for gun control in PA, and our Constitution has (and has had, since before the US Bill of Rights if I recall correctly) a right to keep and bear arms.