Some obstacles which prevents third party candidates from winning elections;
Not a well known name, not enough money for campaigning, minority of voters go outside democrats or republicans. However, most of all is the ability to withstand your opponents and go the distance.
Answer:
The Necessary and Proper Clause allows Congress "To make all Laws which shall be necessary and proper for carrying into Execution the [enumerated] Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof."
Explanation:
the sale is slaves across state line was outlawed
In Europe, Rivers had the greatest impact on medieval life because they provided both a food source and allowed for the spread of ideas through human movement.