If not, Powerline linked a good essay by James Ceaser. A quote:
For many Republicans, and especially for the allies in the Tea Party movement, the issues of economic policy were also linked to a deeper concern. The size of government and the extent of the federal debt represented not only a burden on future generation and a threat to American power, but also a violation of the spirit and letter of the Constitution. The Tea Party in particular, with its belief in Jeffersonian ideas, has been responsible for re-introducing the Constitution into the public debate, a place that it has not held in the same way for over a century. This theme is what connects the Tea Party to the American tradition and makes their concerns matters of fundamental patriotism