Looking for something to do until George Bush isn’t president anymore? Our new 2008 Presidential Approval Matrix will help pass the time. Every day, we’ll add fresh items about the candidates on the campaign trail. Did someone make an embarrassing blunder? Did a politician dare to tell the truth? Determine whether the presidential wannabes are likable or loathsome. Decide if their words are spin or substance. It may not be scientific, but it’s more fun than the current administration.