In October 1990, owing to mounting pressure from both within and outside the country for political and economic reform, president Momoh set up a constitutional review commission to assess the 1978 one-party constitution. Based on the commission's recommendations a constitution re-establishing a multiparty system was approved by the exclusive APC Parliament by a 60% majority vote, becoming effective on 1 October 1991. There was great suspicion that president Momoh was not serious about his promise of political reform, as APC rule continued to be increasingly marked by abuses of power.