What did The spoils system under Andrew Jackson resulted in?

Until the Civil Service system was put into the place. The US President filled a large of number of federal jobs , including low-level positions by making appointments.

Before Jackson, most of the job-holders were re-appointed when a new President took office. Jackson was elected by his newly formed party and he decided to fill most of the jobs with his supporters as a reward for helping him win election. The phrase, "to the victor belong the spoils", came to mind and the practice of turning over the employees became known as the "spoils system"