Despite the terror and unprecedented propaganda, the last free General Elections of 5 March 1933, while resulting in 43.9% failed to give the majority for the NSDAP as Hitler had hoped. Together with the German National People's Party (DNVP), however, he was able to form a slim majority government. In March 1933, the Enabling Act, an amendment to the Weimar Constitution, passed in the Reichstag by a vote of 444 to 94. To obtain the two-thirds majority needed to pass the bill, accommodations were made to the Catholic Centre Party, and the Nazis used the provisions of the Reichstag Fire Decree to keep several Social Democratic deputies from attending, and the Communists deputies had already been banned. This amendment allowed Hitler and his cabinet to pass laws—even laws that violated the constitution—without the consent of the president or the Reichstag. The Enabling Act formed the basis for the dictatorship and the dissolution of the Länder; the trade unions and all political parties other than the Nazi Party were suppressed. A centralised totalitarian state was established, no longer based on the liberal Weimar constitution. Germany left the League of Nations. The coalition parliament was rigged by defining the absence of arrested and murdered deputies as voluntary and therefore cause for their exclusion as wilful absentees. Subsequently, in July the Centre Party was voluntarily dissolved in a "quid pro quo" with the Pope under the "anti-communist" Pope Pius XI for the "Reichskonkordat"; and by these manoeuvres Hitler achieved movement of these Catholic voters into the Nazi Party, and a long-awaited international diplomatic acceptance of his regime. According to Professor Dick Geary the Nazis gained a larger share of their vote in Protestant areas than in Catholic areas, in the elections held between 1928 and November 1932. The Communist Party was proscribed in April 1933.