Under the leadership of the supreme court established the superiority of federal authority under the constitution in cases that came before the court in the early 1800s.

the answer is john marshall. hope this and good luck on your assignment!

your stuuupid lolz

explanation:

interest groups send representatives to state capitals and to washington, d.c. to put pressure on members of congress and other policymakers. they engage in lobbying, or the organized process of influencing legislation or policy. lobbying can take many forms. interest groups can testify in congressional hearings.