One of the key arguments for a great power — other than the great power itself wanting to be one — is that they act as a guarantor of stability and the status quo. That is far from the only public or global good. And a great power will ensure that status quo on its own terms and mostly to its own advantage. But if you have any acquaintance with history, you know you can do a lot worse than relative peace and the status quo. Trump’s Iran War has been a bracing illustration of all these realities. Once the great power starts letting things break, those breakages can start multiplying very fast. Eventually you’ll find a new equilibrium, of course. But eventually can take a long time. And again, even a passing acquaintance with history tells us that things can suck without end for extended periods of time.

There’s an interesting New York Times piece from over the weekend that illustrates all these things. We know the outline. But it provides new details. As a knock-on effect of the U.S. war with Iran, the ongoing battle between Saudi Arabia and the Houthi rebel government in Yemen has again become hot. In recent weeks, the Houthis have partly cut off Saudi Arabia’s other path to the ocean. Put simply, the Saudis can export oil through the Strait of Hormuz or the Red Sea. The former has been mostly closed for months. Now the Houthis are in de facto or near control of the second. That’s a big crisis for the Saudis. This is part of the larger U.S.-Iran battle because the Houthis are clients of Iran. And Iran’s core strategy has been to create enough pain for the U.S.’s regional allies that they will force the U.S. to end the war. Remember, each time the U.S. attacks Iran, they respond by attacking the various Gulf emirates.

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.”