The Koch-founded-and-run Citizens for a Sound Economy (shown there as running this “Tea Party”) subsequently divided itself into two parts: FreedomWorks, and Americans For Prosperity. Both parts ardently pushed the Tea Party “movement” (which didn’t yet exist).

Also:
The extremely conservative Rick Santelli was on the floor of the Chicago Mercantile Exchange during this time, on 19 February 2009, telling CNBC’s very conservative audience that Obama’s proposed economic stimulus caused America’s Founders to be “rolling over in their graves,” and at 2:12 in the video, he urges that there be a “Chicago tea party in July,” but he does not actually mention the “Tea Party,” nor does he mention by name Sam Adams.

Finally, the Kochs’ own astroturf “grass roots movement” became very public and active at the Koch-created FreedomWorks: unmistakably, this is the “Tea Party Movement” as we know it. Notice that the URL shown here says “iamwithrick,” which means “I am with Rick Santelli.” In other words: it means that FreedomWorks was serving as a national megaphone for Rick Santelli’s rant.
http://www.huffingtonpost.com/eric-zuesse/final-proof-the-tea-party_b_4136722.html