Joseph R. Biden Jr., Delaware's longest-serving Senator, gets the nod as Barack Obama's running mate. (You can breathe a sigh of relief, all of you who threatened to fling yourselves from the Golden Gate Bridge if Clinton was picked.) More importantly, Biden is a Scorpio and Obama is a Leo. We have no idea what that means. But according to the NYT: Mr. Biden is the chairman of the Senate Foreign Relations Committee, and......