Blumenthal takes a look at the poll from last week showing Democrats resurgent. Bottom line:

The case for true “jump” in Democratic performance on the generic House ballot is weak. If we add the context of other recent polls, it gets weaker still. Their results scatter around a dead-heat margin in ways that are more or less consistent with their typical house effects on the generic ballot.

As always, more data next week will likely settle the issue, but I wouldn’t be surprised to see the next move in Gallup’s weekly tracking in the Republican direction, not because of real-world events but rather due to what statisticians call a reversion to the mean.

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