Is it over?

I think it is. The Guiliani strategy of absorbing major loss after major loss and creating a big state firewall was a disaster for Rudy and it will be a disaster for Hillary. I don't know if she had much choice, given the mismanagement of her campaign and the financial straightjacket they found themselves in.

Polls going into yesterday showed Obama garnering about 30 net delegates, but the true number from last night alone is going to be closer to 50-60, and his lead among pledged delegates is going to be well over 100. The margin is larger than Hillary can expect to make up in just the big states left - Texas, Ohio, and Pennsylvania.