Which of these was not a key difference between northern and southern states at the constitutional convention

a and b!

dfroos means which is a and b

a case involving the laws of a single state.

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.

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else