Of the powers shared by the federal government and state governments, which do you think is the most important and why?

Who is john brown and what did he do

According to article 1, why did massachusetts raise their taxes on citizens, and what about the currency of the time made it difficult for citizens to pay these taxes

How and why did the policies of the federal and state governments toward native american people change between 1790 and the 1850s. what were the reaction of native american people to these policies?