Nader announces 2008 presidential run to fill the void. Watch clip above. Read transcript here.
Singer-payer supporters who want George W. Bush impeached get their man.
On "Meet the Press," long-time consumer advocate dishes usual rhetoric on issues and denies/decries the "spoiler" label.
Clinton's response to the news: "Did he really? Well, that's really unfortunate."
Obama says at Ohio presser: "He does it every four years."
