This more recent poll says the race is virtually tied at 41-40. Actually, turnout is everything. Dr. Miller-Meeks is on the ballot between Chuck Grassley and former/future Governor Terry Branstad, both of whom will win easily. I hope that they will carry her over the line.
http://mariannettemillermeeks.com/download/Miller-MeeksforCongressPollingMemo.pdf
Wow—it will be amazing if she can overcome the left wing cesspool of Iowa City/Johnson County.