| A | B |
| Has a Unitary system | U.K. |
| Has a Federal system | U.S. |
| Has a Confederal System | European Union |
| Federal system places power in | state AND national levels |
| Confederal system places pwr. in | each individual state |
| Unitary system places power in | national government |
| proved confederalism to be weak | Shays' Rebellion |
| proved federalism to be strong | Whiskey Rebellion |
| Article I sect. 8 of Constitution | lists specific Congressional pwrs. |
| Article II sect. 2 of Constitution | grants several pwrs. to president |
| Article III | grants judicial pwr of Sup. Ct. |