rather, congress deemed them necessary and established them using power granted from the constitution. section 2 of article III gives the supreme court judicial power over “all cases, in law and equity, arising under this constitution”, meaning that the supreme court's main job is to decide if laws are constitutional.
Explanation:
the judical branch interprets laws while the surpereme court is charged with ensuring the American people the promise of equal justice under law and, thereby, also functions as guardian and interpreter of the Constitution. The Supreme Court is "distinctly American in concept and function, which is more 'important'.
