In recent months, the most influential political party in the country may not be the Republican Party or the Democratic Party, but the Tea Party. This murky, largely leaderless grassroots movement has been the driving force behind the derailment of President Barack Obama's dearest agenda items, notably health care reform and climate change legislation. What are the goals of this movement? In part, that is the wrong question. The Tea Party effort rejects the notion that a politician or a pundit should define their movement. Rather, citizens themselves will tell us what the movement means. As their name suggests, these...