Answer:
Adams created previosuly non-existing judicial vacancies and achieved the appointment of federalist supporters as judges. Voting in the Senate on their candidacy and registration of judicial patents lasted until midnight on the last day of Adams' tenure, hence the name "midnight judges."
The Jefferson administration has tried to cancel midnight appointments. However, one of the appointed but not patented judjes, William Marbury, appealed to the US Supreme Court. The Court ruled that the government did not have the right to refuse Marbury’s office, but at the same time recognized the Act on the Court as unconstitutional.
Step-by-step explanation: