A new Gallup poll finds that Democrats hold an 11-point lead over Republicans in House races among likely voters, 54% to 43%. Nate Silver: “We’ve frozen our forecasts, the final model runs are whirring away now. And we’ve also frozen our generic ballot average. It wound up at D+8.7. That’s not a good number for Republicans. The Democratic lead ticked up from about 8 percentage points to 9-ish on the last set of polls we entered before freezing everything.”