| A | B |
| delegate | always follows constituents preference |
| trustee | mostly use their own judgement when voting |
| politico | follow constituent views if constituents really care about it; use own judgement if they don't care |
| partisan | always votes with party |
| Speaker | 2nd in line to be President; most powerful member of Congress |
| President of Senate | VP; can only vote if a tie |
| President Pro-Tempore | 3rd in line to be President; presiding officer when VP not present |
| Majority Leader | most powerful member of the Senate (party leader); in House, 2nd in charge behind |