Help me on this one

I find George Voinovich's impassioned speech on the Senate floor yesterday against the confirmation of John Bolton to be somewhat noble, an expression of conscience. However, help me out with one thing: couldn't he have ended the Bolton nomination simply by voting "No" to send him to the floor without recommendation?

It's like letting somebody eat all your food and then crying because you're hungry. Enabler, thy name is Voinovich.