Convention Bounce?

Since Thursday night opinion polls have come out that have claimed to measure the impact of the Democratic Convention on the presidential race. The problem is that these polls are not all that accurate and so it may be a bit longer untill the Convention's true consequences are clear. it is clear. The latest Newsweek poll (via MSNBC) shows Kerry with a 5 point bounce, though the blog Donkey Rising calls the Newsweek unreliable since it included data that was collected before Senator Kerry's acceptance speech. Rasmussen Reports' daily presidential tracking poll (which show Kerry with a 4% post-convention boost) suffers from the same flaw, with a third of their interviews conducted before John Kerry spoke.