Sugar Act
American colonists initially objected to the Sugar Act for economic reasons, but before long they recognized that there were constitutional issues involved. The British Constitution guaranteed that British subjects could not be taxed without their consent, which came in the form of representation in Parliament. The colonists elected no members of Parliament, and so it was seen as a violation of the British Constitution for Parliament to tax them. There was little time to raise this issue in response to the Sugar Act, but it came to be a major objection to the Stamp Act the following year.