I will be surprised if he is not nominated. Many people care more about abortion than sexual assault. He said, she said typically goes to the guy. She will likely have upset her life for nothing, but she can hold her head high. She represented well.
Hard to say. Trump either admitted to groping a woman or supporting the idea of groping a woman--e.g., "Grab her by..."--and it didn't stop him from getting elected President. Of course, in that case, he was running against Hillary.