One of the main ways in which President Wilson earned the respect of the progressives is that he wasn't afraid of going after corruption in big business or government, as well as breaking up "trusts".
Germanys attack and fast air moves
It's called Nullification
Increased federal control--all of these expanded the economic power of the federal government.
Democrats believed in a stronger state government and a reduced federal government. Having economic control opened the door for the federal government to become a monarchy. Tariffs also hurt the South and the farmer which the Democrats tended to represent.