The industrialization was different...Europe was further advanced in industry than America was.
The Constitution explicitly assigns the president the power to sign or veto legislation, command the armed forces, ask for the written opinion of their Cabinet, convene or adjourn Congress, grant reprieves and pardons, and receive ambassadors.
A governor's official duties can include signing bills into law, serving as commander-in-chief of the state's National Guard and militia forces, convening special sessions of the state legislature, delivering a "state of the state" address to citizens, granting commutations and pardons to prisoners
Political instability in the Weimar Republic. The new Proportional Representation system of voting in the Weimar Republic caused political instability. Whilst the new system intended to reduce political conflicts, it in fact resulted in many different parties gaining a small amount of seats in the Reichstag.
