Ihave a prompt for political science and i need with explaining this !

Congress would most likely rely on the following:

The Supremacy Clause of the United States Constitution declares the laws of the Constitution as supreme over state laws. In the case of conflict, federal law takes precedence over state laws and state constitutions. This cqn be found in Article 6, Clause 2 of the United States Constitution.

States would most likely rely on:

The nullification theory allowing states to nullify federal laws they find as unconstitutional, or interposition the right of a state to interpose between the states citizens and the federal government.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.