I realize the Selzer poll is highly respected and her track record is very good, but is it being over played a little?
There are only 808 participants in the poll. A higher sample would decrease the margin of error.
I was also thinking about a potential lack of advertising from the campaigns in Iowa. They may not have been bombarded by a lot of the negative advertising about Harris, especially the Trans Prisoners attack ad, which is the one the Trump campaign has put the most money behind, meaning they think it is the most effective.
I would just find it wild that Harris could win Iowa by a bigger margin than PA, MI or WI, as she has had very few polls were she has been +3 over Trump in the swing states.
Or are the other pollsters really all herding, as not to be embarrassed on election night?