Packing the court isn't an option unless you also make it impossible for anyone else to pack the court.

Let's say a Democrat wins in '28 and decides to expand the court from 9 to 13. +4. That flips the 6-3 majority to a 7-6 majority.

The next elected Republican will just expand it to 15, flipping it back.

We could lock it in with a Constitutional Amendment saying that the Supreme Court must be made up of one member from each Circuit Court, of which there are currently 13. The numbered courts 1-11, plus DC and the Fed.

Maybe even add age limits and term limits while we're at it.

But man, the bar on an amendment is too high to pass now. 2/3rds of the House and Senate, then ratification from 38 states.