Creve was an active politician who was elected President of the Party for Gelijkheid Vrijheid Democratie.
He was also elected in a Congress and has served 7 terms as a Member of a Congress in United Netherlands. He suggested to Gelijkheid Vrijheid Democratie members to merge with The libertarian party, and a congressmen for the LP.
GVD Partijblad was the newspaper owned and published by CreveRoeland. There were almost 100 readers subscribed to this newspaper. Later he renamed the newspapers to .