The Weimar Republic was beset with serious problems from the outset that led many Germans either to withhold support from the new parliamentary democracy or to seek actively to destroy it. The extreme left and much of the right provided the republic's most vitriolic opponents. Its supporters included the bulk of the left, represented by the SPD, and the moderate right, made up of the Center Party and the DDP. However, at key times these supporters failed to behave responsibly because of political inexperience, narrow self-interest, or unrealistic party programs.
The most serious obstacle…