GQR poll finds PA-1 within a point; our forecast nudges a point toward Harvie

A GQR survey of 400 likely voters in Pennsylvania's 1st District, fielded August 19-23, put Republican incumbent Brian Fitzpatrick at 49 percent and Democrat Bob Harvie at 48 percent. On a sample that size, a one-point separation is not a lead. The race is close.

Our model now gives Harvie a 37 in 100 chance of winning the seat, up from 36 percent in our previous run earlier today. The mean margin moved from R+3.5 to R+3.1. Our 5th-to-95th percentile range spans R+19.3 to D+13.4, slightly narrower than the R+19.6 to D+12.8 range in the prior run. That is a small shift in the Democrat's direction, and it is the kind of movement a single 400-person poll should produce: the new numbers largely confirm what our estimate already said, which is that Fitzpatrick is favored and the outcome is genuinely uncertain.

The wider picture has not changed either. Our generic ballot average stands at D+6.7 across 22 polls in a 45-day window. Our model gives Democrats a 93 percent chance of winning at least the 218 seats needed for House control, with a mean of 241.0 Democratic seats. One caveat on that figure is ours to own: our simulation draws correlated error nationally, by census division, by state and by district, but we have no cluster data to correlate demographically similar districts across regions, so the House control probability is marginally firmer than a fuller decomposition would leave it.

With 64 days until the November 3 election, PA-1 remains a district our model treats as competitive but leaning Republican, and the GQR poll did not change that.