Well for the vice president is to serve as an a act for the presiding officer of the senate,and they also contribute to being a ceremonial assistant,now for the presidents some powers are to be able to veto a law or sign he can also command army or armed forces,and also grant pardons to people.
The British abandoned Boston in early 1776 because they were forced out of the country by the American soldiers.
American Revolutionary War was at large, and the Patriots, led by general Washington (who later became the first president of USA) won the battle at Boston, which was bloodless, by the way. This brought an end to an eight-year British occupation of the city.
So the government couldn't get too powerful.
