Under a system of duel federalism, conflicts between state laws and federal laws are

How did the late 19th century public schools change?

Why were colonial assemblies created and what did they do

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife