This would never happen because the are moderates that implies they are ambivalent and wishy-washy and would not be able to organize. If they are moderates that means they think the status quo is ok unless something major happens to upset them, like economics, or late release of new iPhone.
Go tell that to Sam Brownback.
He's going down in flames because moderate (so called) republicans are joining with democrats to kick him out.
Far right reactonaries are Conservatives, not Republicans. We in the mainstream told you what would happen if you did not toe the line.
Listening in falsetto: oh, the party is being pulled to the right by the defeated TPM candidates.
Speaking of corporatists....