What was the first real threat to States' Rights that caused many people
concern?

agriculture revolution

because of the war the westeners befriended japan and each other advance.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp

examples that illustrates limits on texas governor´s power are: it can remove only its own appointees; the judiciary is elected; needs senatorial confirmation.