Super Tuesday’s Ultimate Catch

Schwarzenegger endorses McCain in Los Angeles, offers boilerplate homage to Arizonan's resume.   McCain gives passionate speech, pledging to "hand our children a cleaner planet." Watch clip above.   WashPost's Balz: "A tableau that makes the old Republican Party shudder."   Bloomberg News: "The endorsement has cachet. He is the quintessential, crossing party lines, post-partisan politician."   Plus: Texas Gov. Rick Perry (who had been supporting Giuliani) also decides to back McCain.