Stephanie Kirchgaessner of the Financial Times spends election night with FreedomWorks, one of the most organized and prominent Tea Party groups headed by former Republican leader Richard Armey. Mr Armey says the Tea Party has not only defined this midterm election but will define the 2012 presidential election. He warns that the movement will challenge moderate Republicans as well as big businesses that rely on government subsidies.
Produced by Lagan Sebert. Filmed by Steven Greenstreet and Lagan Sebert.