Osama Obama will appoint Supreme Court and Federal court judges who are to the far Left of Ruth Bader Ginsberg. The effects of their decisions will last for decades.
As will McCain. His recent comments on Alito, his actions forming the Gangrene of 14, and leading the opposition on other Social Conservative positions all indicate someone just as bad. He suffers from "do what the Dims want so it'll get passed and my reputation for getting things done" syndrome.