To me, this is a snarky move. Trump called their decision ‘political’ so now the 3 want their buddies to sign on, too, as a one-upmanship.
After Trump wins this, I hope he pulls a Bush and fires a truckload of judges who feel they can legislate from the bench.
Split the 9th into at least 2 districts and reassign each judge to the least convenient circuit, making them all move residences, (or commute their arses off ). It's likely to yield more than a few retirements.
BINGO ! I like it.