The entire slate of polls was not good, which Nate Silver pointed out with his 11 observations. That last point may be a bit optimistic [emphasis mine]:We should start by acknowledging that an El-Sayed win by any margin is a significant accomplishment. Michigan, where I’m from, isn’t New York City or some super liberal district in Colorado. At another point, El-Sayed falsely accused a different pollster that had Stevens narrowly ahead of having been funded by AIPAC. With that said, Congressional primaries are hard to poll, and Michigan is a particularly hard state to poll for various reasons.