The opinions expressed in this commentary are solely those of John Avlon . John Avlon : Can one predict presidential chances by GDP growth , approval , jobs ? He says Nixon , Reagan overcame poor approval ratings . Comment: Bush over a small recession . Obama faces strong headwinds in a 40 % conservative electorate .
John Avlon : Can one predict presidential chances by GDP growth , approval , jobs ? He says Nixon , Reagan overcame poor approval ratings . Comment: Bush over a small recession . Obama faces strong headwinds in a 40 % conservative electorate .