I fully agree that Clinton is a witch-with-a-B. As she falls farther behind and desperation sets in, her true colors start to leak out which is not exactly helping her regain her initial momentum. The good part is by letting her true colors leak out, she is giving even some of her better supporters pause in wondering exactly what kind of person are they supporting.
But I do think a significant factor that caused her to fall behind in the first place is due to gender bias. No it does not bother some, but it does bother others.