What am I missing?
1) It takes four Supreme Court justices to agree to hear a case (grant a writ of certiorari).
2) Four justices say they want to hear a case.
3) Update: No cases were granted a writ of certiorari.
They could agree to grant a writ of Certiorari.
But, they want to enforce the Second Amendment, not gut it.
Four justices want to gut the amendment, probably most notably, Ruth Bader Ginsberg.
They cannot stop a writ of certiorari, but if they can get a fifth justice to join them, they can gut the Second Amendment.
So, the four will not grant a writ of certiorari unless they are reasonably sure they can enforce the Second, not gut it.
They clearly have serious doubts about a fifth justice. Who would it be, if not John Roberts?