Factcheck.org: " An Obama-Biden ad says McCain supports 'cutting benefits in half' for Social Security recipients. False!" Obama continued his campaign to scare the elderly by telling another " Social Security Whopper" during a speech in Florida today. Jay Cost looks at the polls over the past three months and sees " remarkable stability" in the presidential race. Obama and McCain issue statements on the bombing in Pakistan. Nate Silver runs through the problems with a new poll that suggests support for Obama would be as much as six points higher if it weren't for racism of white voters. Joe Biden warns Barack Obama: I'll give you my gun when you take it from my cold, dead hands.