Which of these is not a principle in which John Marshall established? A. The Constitution is the supreme law of the land

B. The Constitution must be followed if there is conflict

C. The Legislative branch can declare laws unconstitutional

D. all of the above

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers.c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers.d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.