German Student interested in U.S domestic politics

[50shadesofkraut]

2. I have special interest in the regionalism of the tea party

Currently I am writing research paper in U.S domestic politics, concerning the rise of the tea party.
I am working on the question, how the tea party, which is generally percepted as a conservative (christian right) phenomenon from the south, was able to win against incumbent democrats.
Especially from liberal states.
I want to know if the tea party `acts´ more liberal in the north (compared to the south of course, these fellows are not liberal at all).
The problem is, the, let´s call it informal structure of the tea party, it is very hard for me to find a list of all the tea party canidates who won against democrats compared to the ones, winning against other GOP guys.