I’ve saved a billion dollars. Expect to hear that line again and again from Rob Ford over the next seven months. He said it at the first big debate among leading candidates for mayor. He said it again on CBC Radio’s Metro Morning on Friday. It is at the core of his pitch to be returned to office. He hopes to persuade voters that he has worked such wonders with the city’s finances that they should ignore the crack scandal and re-elect him on Oct. 27.