Because for whatever reason he had decided he wanted to publically embarrass Lugar, Republicans and stab the base in the back. Why no one knows. Warning signal about Judicial filibusters? Does he want more pork? Special pet legislation? Only can guess. Personally I wuld deny him everything.
It is quite a feat to eclipse McCain, but Voinivich has done it. Even McCain hasn't humilated Republicans in this manner.
I am not that familiar with Voinovich but when I saw him today,he looked very sun tanned and tired. When he spoke he was not confident and sounded either under the weather or guilty of something. I think he realized he stepped in deep doo doo. Is he naturally swarthy looking? If so then that was his natural look,but he has no projection and no energy.