In 1767, the Parliament passed the Townshend Acts which placed duties on a number of essential goods, including paper, glass, and tea, and established a Board of Customs in Boston to more rigorously execute trade regulations. The new taxes were enacted on the belief that Americans only objected to internal taxes and not to external taxes such as custom duties. The Americans, however, argued against the constitutionality of the act because its purpose was to raise revenue and not regulate trade. Colonists responded by organizing new boycotts of British goods. These boycotts were less effective, however, as the Townshend goods were widely used.
"The situation in which I now stand for the last time, in the midst of the representatives of the people of the United States, naturally recalls the period when the administration of the present form of government commenced, and I can not omit the occasion to congratulate you and my country on the success of the experiment, nor to repeat my fervent supplications to the Supreme Ruler of the Universe and Sovereign Arbiter of Nations that His providential care may still be extended to the United States, that the virtue and happiness of the people may be preserved, and that the Government which they have instituted for the protection of their liberties may be perpetual."
.. Washington's final annual message to congress - december 7, 1796