The main purpose of this legislative proposal is to amend the U.S. Constitution to set a limit on the terms of office for judges of the Supreme Court and lower courts. The objective is to ensure that judges do not serve for life, which is the current practice, and to promote a system where judges can be replaced after a set period. The key provisions of this proposal include a term limit of 20 years for judges of the Supreme Court and inferior courts. After serving this term, judges would not be eligible for reappointment to the same court.