As usual, the polls don't all agree, but the consensus seems to be shaping up that John Kerry either had no bounce at all from his convention or a very slight upward tick of only one to four points. It was one of the least successful conventions in recent history. What happened? Going in to the convention, Kerry had a critical policy choice to make: Use the four nights of his conclave to stress the domestic issues on which he has significant leads in the polls (health care, drug prices, wages, Social Security, Medicare, environment, the deficit and education), or...