Picket fence federalism describes the interaction among horizontal levels of government and the variety of vertical governmental functions or programs

Through which means are public problems, for which a new policy may be necessary, brought to the attention of Congress?

What will be an ideal response?

Which of the following clauses states that national law takes preeminence over state laws whenever such action is viewed as legitimate and within the scope of constitutional authority?

a. Elastic clause b. National supremacy clause c. Commerce clause d. Necessary and proper clause