Why did southern politicians support lower tariffs?

to increase the economy

The South imported most of its manufactured goods from overseas, and low tariffs would keep the price of those goods down.

Explanation:

your welcome this is the "sample answer"

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".