The election of March 5 was the last held in Germany until after World War II. Although opposition parties were severely harassed, the NSDAP won only 43.9 percent of the vote. Nonetheless, with the help of political allies, Hitler presented the Reichstag with the proposal for an Enabling Act that, if passed by a two-thirds majority, would allow him to govern without parliament for four years. On March 23, the proposal was passed with the support of the Center Party and others. All Communists and some Social Democrats were prevented from voting.