In my Honors Foundations of Democracy class we are learning and researching about the Cabinet. On the homework there was the question “Name the six Cabinet Ranking Positions” and I have searched the internet but i can not find the answer and no one else in my class has either, so I came to my last resort, Yahoo! Answers. Does anyone by any chance know the six Cabinet Ranking Positions are?

In news I just read that Rahm Emanuel is the “fourth-ranking Democrat in the House”, what is this ranking based on?
Thanks a lot!