Challengers to the Trump administration’s appointment of Matthew Whitaker as the acting U.S. attorney general are asking the U.S. Supreme Court justices to do something they almost never do: hear oral argument on a court motion.

The Supreme Court is routinely asked to resolve various types of motions during any given term—lawyers ask for more time to file papers, or perhaps they want to file a brief under seal or out of time. Most of these requests are disposed of through a simple order—without oral argument.