What is wrong with you people?? The Tea Party Caucus is NOT defunct! Check the Google news feed: 
 https://www.google.com/search?q=tea+party+caucus 
 I would suggest a re-write of the article removing all of the 'defunct' and 'was' references. The evidence given is a non-existing membership page. What does that prove?? Anyone with any sense knows full well that the Tea Party Causus is VERY active in recent times. Even the reference to 'as of October 2013' is false, there are dozens of news articles from November 2013 referencing the Tea Party Caucus and it's members. How is it possible for a movement with a large enough membership in congress to shutdown the government to be defunct? They are currently discussing another shutdown. I am shocked and ashamed to see this sort of non-sense on Wikipedia. Most schools won't allow students to site Wikipedia for exactly this reason. The first priority of anyone involved in Wikipedia should be to get this non-sense biased incorrect and misleading information permanently removed from Wikipedia.