Answer all parts.The United States has a federal system of government in which power is shared by national and subnational political units. Why did the framers of the Constitution construct a federal system of government? Discuss the evolution of federalism, beginning with the Constitutional foundations of federalism (You must cite specific Articles, sections & clauses in the Constitution and/or Amendments) and ending with the current movement. List and discuss two examples of contemporary public policy issues that illustrates the tension of federalism issues.Your report should be between 300 and 500 words, double-spaced and in APA format, with parenthetical citations and a Reference List. A cover page is not necessary.View the Written Assignment Rubric to understand how you will will be evaluated.