Conventional wisdom holds that a midterm election only fully comes into focus after Labor Day. That’s when a critical slice of the electorate starts focusing on the election and the choices before them. More or less in line with that, we’ve had a spray of polls out in the last few days showing the congressional generic ballot shifting decisively in Democrats’ favor. Looking only at generic ballots fielded entirely in September by pollsters the New York Times rates as trusted we have D+7, D+9, D+9 and D+11. If that trend or average is representative, it shows Democrats opening a big lead on this measure where the earlier average had been in the 5-7 point range. As Ron Brownstein notes here, history also tells us that in the final weeks of a campaign, this generic ballot measure will bend toward the president’s approval number. That appears to be happening. One of those, from the Times itself, was released today (D+9) with an accompanying write-up which, simply because it’s the Times, will probably draw attention to this trend even though the Times poll is only one of several.

Polls and trends can of course be wrong. But these numbers are extremely bad for the GOP, and if anything in this ballpark is accurate Republicans will likely lose the Senate as well as the House. Indeed, the variability in possible outcomes may be even higher in the Senate since it’s not amenable to gerrymandering. Even the Times, usually eager to find possible downsides for Democrats, frames their poll with declarative statements like this: “Voters see Republicans broadly as more extreme, more elitist and more corrupt than Democrats, according to the poll. And while voters continue to have doubts about both parties, they aligned more with the Democratic Party on both cultural and economic matters than the Republican Party in the survey.”