His rise to power was facilitated by President Paul von Hindenburg, the German army and many politicians. Combining the posts of president and Chancellor, he acquired supreme authority of Germany by making the Nazi party as his powerbase to rise to power.
He first established a Nazi dictatorship by means of the Enabling Act. In March 1933, to obtain two-thirds of the majority needed to enact the Enabling Act, the Nazi party used the Reichstag fire to argue that a Communist revolution was imminent and thus depower the communists. Furthermore, the Nazi policies were much more appealing relative to that of the failed Weimar Republic's and thus, large numbers turned to Hitler as they were longing for a period of stability within Germany after an unsuccessful rule by the Weimar Republic.
The Nazis came to power through an alliance with some traditional conservative factions, although they experienced opposition from the opposing parties including the spd, kpd and zentrum party. Franz von Papen, a conservative former German Chancellor and former member of the Catholic Centre Party, supported Hitler for the position of Chancellor.
Political and corporate engineering won Hitler the Chancellorship. In 1933 the Enabling Act gave Hitler dictatorial power. This Act passed with the support of the Huguenbergian German National People's Party (DNVP), a few liberals, and all conservative and centrist deputies in the constitutionally-disabled and effectively rigged Reichstag.
This remaining bloc easily defeated the sole opposition of the Social Democrats, because a large proportion of the Communists had been either arrested or murdered.