If you recall, Voino and DeWine BOTH voted for conviction of Clinton and against CFR. One (Voino) voted for ANWAR, and one (DeWine) voted for the tax cut. Both have voted for Estrada. DeWine is VERY strong on pro-life.
So when you look across the board, there is no way, most thoughtful conservatives would leave Voino if he faced SPRINGER. Now, a more conservative primary challenger? Sure.