If it was 70% I might be convinced. Based on his performance, the number is lower than that. Much lower. As in the case of Gov. Schwarzenegger, he is so far away from the base, that it really does damage to the party to have him as a candidate and an elected official.
What performance? You mean his record in ultra-Democratic Massachusetts, where just about every veto can be overridden by the legislature that has only 30 Republicans, out of 200? I don't think it's fair to judge him on basis of what he accomplished in that state.