Ohio's 7th District moves to a coin flip in our model

Our model now gives Democrat Brian Poindexter a 50 in 100 chance in Ohio's 7th District, against Republican incumbent Max Miller. That is down 9.5 points of Democratic win probability from the run of August 23, when the estimate stood at 59 percent.

The projected margin moved with it. A week ago our model put the mean result at D+2.5; it now puts it at R+0.1. The spread around that central estimate is wide and roughly unchanged: our current 5th-to-95th-percentile range runs from R+16.4 to D+16.5, compared with R+14.3 to D+19.3 a week ago. On those numbers the district is close enough that our model treats either outcome as about equally likely, and a result well outside a two-point margin in either direction is entirely consistent with the forecast.

We published a note on August 23 recording a smaller trim in the Democrat's odds here. This is a second move in the same direction, and a larger one. No new survey of the 7th District entered our average between the two runs, so the payload behind this run does not identify a cause. Our model draws on district-level and national inputs, and the shift could reflect either; we are not in a position to attribute it, and will not guess.

Nationally, our average of 22 generic-ballot polls over the past 45 days stands at D+6.6, and our model gives Democrats a 94 percent chance of winning at least the 218 seats needed for House control, with a mean of 241.0 seats. One caveat on that figure is ours: our simulation correlates error nationally, by census division, by state and within each district, but we have no data to correlate demographically similar districts across state lines. Without that term, the House control number is marginally firmer than it should be.