The group hopes to recruit someone to challenge Buchanan, R-Sarasota, in next year's Republican primary. So far, only Democrat Mitch Mallett of Bradenton has filed to run against Buchanan.
"Help us fund primaries to oust those who caved. Join the Primaries for Traitors Fund and help us fire the showboat RINOS ("Republicans In Name Only") for good!" the Tea Party Leadership Fund said on its website.
Buchanan and the other lawmakers raised the Tea Party's ire last month when they voted to end the federal government shutdown and to raise the nation's debt limit.
For more, watch this video from Tea Party Leadership Fund: