Rush is contradicting himself since he has been saying all along that it is very hard for Hillary Clinton to be President. Sometimes Rush says stupid stuff in particular when he is not having a good day. I guess the Virginia Tech shooting has disrupted his already prepared show and he is angry about it, so he starts saying really stupid stuff like 80% chance of Hillary Clinton being elected President.
From your keyboard to God's eyes! It did really startle me since I've taken some comfort from Rush's previous statements that she'd be hard to elect. Of course, he was absolutely positive she couldn't be elected senator, either.