[ctdonath2]

A bad ruling would not affect the current legal status of the RKBA anywhere in the US. Agreed?

Not agreed. A bad ruling would be: DC keeps its prohibitions, and thus Congress can extend them to the whole USA. No handguns period, and all long guns must be permanantly locked up, most certainly affects the current legal status of the RKBA everywhere in the US.

[Ken H]

A bad ruling would be: DC keeps its prohibitions, and thus Congress can extend them to the whole USA.

Congress already banned "assault rifles" once, so I don't think Second Amendment case law is what has restrained them. It's fear of the voters at the ballot box. A bad ruling maintains the legal status quo.

[robertpaulsen]

"DC keeps its prohibitions, and thus Congress can extend them to the whole USA."

DC has had these prohibitions what, 30 years now? What has kept Congress from extending them to the whole USA in those 30 years?